CVE-2026-81032

CRITICALPre-NVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-26. A secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 9.8Exploit: No code on recordExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The CVE record's CNA (VulnCheck) lists vesoft-inc nebula versions up to and including 3.8.0 as affected. No release containing a fix is confirmed on record.

NebulaGraph exposes its runtime configuration over an unauthenticated HTTP service. Each daemon starts the web service defined in src/webservice/WebService.cpp, whose bind address defaults to all interfaces, and registers routes for reading and writing gflags alongside status and statistics. Neither the service nor its router carries any authentication, token check or address restriction. The read route returns the daemon's full set of runtime flag values, which includes the configured certificate, key and certificate-authority paths, the password file path, data directories and the transport-security enable flags. The write route parses a supplied map and applies each entry through the gflags runtime setter, so a caller able to reach the port can change the daemon's behaviour without restarting it, including disabling the transport-security flags, redirecting log files and altering flags such as failed_login_attempts and password_lock_time_in_secs. Public reports of this endpoint describe a single name, enable_authorize, being refused by the handler; at release 3.8.0 that refusal is not present and the handler applies every name it is given.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
75
EG Risk 75/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
The EG Score, 9.8 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
27th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 26, 2026

Last Modified

September 24, 2026

Advisory Details (5)

Auto-updated Oct 9, 2026
No fix on record yet.
Web page

Web service GET /flags and PUT /flags accept unauthenticated requests, leaking and rewriting runtime configuration · Issue #6157 · vesoft-inc/nebula · GitHub

https://github.com/vesoft-inc/nebula/issues/6157
Web page

NebulaGraph through 3.8.0 Unauthenticated Read and Modification of Runtime Configuration | Advisories | VulnCheck

https://www.vulncheck.com/advisories/nebulagraph-through-3.8.0-unauthenticated-read-and-modification-of-runtime-configuration
Web page

nebula/src/webservice/WebService.cpp at v3.8.0 · vesoft-inc/nebula · GitHub

https://github.com/vesoft-inc/nebula/blob/v3.8.0/src/webservice/WebService.cpp
Web page

nebula/src/webservice/SetFlagsHandler.cpp at v3.8.0 · vesoft-inc/nebula · GitHub

https://github.com/vesoft-inc/nebula/blob/v3.8.0/src/webservice/SetFlagsHandler.cpp
Web page

GitHub - vesoft-inc/nebula: A distributed, fast open-source graph database featuring horizontal scalability and high availability · GitHub

https://github.com/vesoft-inc/nebula

Vendor Advisories for CVE-2026-81032(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 27× in last 7d / 186× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 329 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 229 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 01:36 UTCEG score recompute
  2. 2026-10-14 01:36 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  4. 2026-10-12 21:46 UTCEG score recompute
  5. 2026-10-12 21:46 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  7. 2026-10-12 14:57 UTCEG score recompute
  8. 2026-10-12 05:22 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-10-11 19:21 UTCEG score recompute
  10. 2026-10-11 16:37 UTCEG score recompute
  11. 2026-10-11 13:55 UTCEG score recompute
  12. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  13. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  14. 2026-10-10 15:15 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-10-10 11:02 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  16. 2026-10-10 06:06 UTCEG score recompute
  17. 2026-10-10 06:06 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  18. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  19. 2026-10-09 07:28 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-10-09 03:22 UTCEG score recompute
  21. 2026-10-09 03:22 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  22. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  23. 2026-10-08 10:02 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-10-08 05:55 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-10-08 01:50 UTCEG score recompute
Show 75 more
  1. 2026-10-08 01:49 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  2. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  3. 2026-10-07 09:26 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-10-07 05:14 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-10-07 01:08 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-10-06 20:43 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-10-06 15:57 UTCEG score recompute
  8. 2026-10-06 15:57 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  10. 2026-10-06 11:48 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-10-06 07:35 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  12. 2026-10-06 01:41 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  13. 2026-10-05 21:01 UTCEG score recompute
  14. 2026-10-05 21:01 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  16. 2026-10-05 16:54 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-10-05 12:09 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  18. 2026-10-05 08:03 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  19. 2026-10-05 03:56 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-10-04 23:47 UTCEG score recompute
  21. 2026-10-04 23:47 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  22. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  23. 2026-10-04 19:41 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-10-04 14:38 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-10-04 10:11 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  26. 2026-10-04 06:04 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  27. 2026-10-04 01:58 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  28. 2026-10-03 20:12 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  29. 2026-10-03 16:06 UTCEG score recompute
  30. 2026-10-03 16:06 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  31. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  32. 2026-10-03 07:13 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  33. 2026-10-03 03:07 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  34. 2026-10-02 23:00 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  35. 2026-10-02 18:54 UTCEG score recompute
  36. 2026-10-02 18:54 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  37. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  38. 2026-10-02 14:48 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  39. 2026-10-02 10:26 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  40. 2026-10-02 06:21 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  41. 2026-10-02 01:15 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  42. 2026-10-01 19:55 UTCEG score recompute
  43. 2026-10-01 19:55 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  44. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  45. 2026-10-01 13:45 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  46. 2026-10-01 09:38 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  47. 2026-10-01 05:32 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  48. 2026-10-01 01:01 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  49. 2026-09-30 19:58 UTCEG score recompute
  50. 2026-09-30 19:58 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  51. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  52. 2026-09-30 10:10 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  53. 2026-09-30 06:03 UTCEG score recompute
  54. 2026-09-30 06:03 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  55. 2026-09-29 12:25 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  56. 2026-09-29 05:32 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  57. 2026-09-29 01:25 UTCEG score recompute
  58. 2026-09-29 01:25 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  59. 2026-09-28 21:20 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  60. 2026-09-28 15:15 UTCEG score recompute
  61. 2026-09-28 15:15 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  62. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  63. 2026-09-28 10:58 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  64. 2026-09-28 06:52 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  65. 2026-09-28 02:46 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  66. 2026-09-27 22:40 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  67. 2026-09-27 18:34 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  68. 2026-09-27 14:28 UTCEG score recompute
  69. 2026-09-27 14:28 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  70. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  71. 2026-09-27 09:54 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  72. 2026-09-27 05:49 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  73. 2026-09-27 00:41 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8
  74. 2026-09-26 20:35 UTCEG score recompute
  75. 2026-09-26 20:35 UTCGHSA enrichmentGHSA-c937-9ccf-7mq9 · GitHub severity CRITICAL · GitHub CVSS 9.8

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81032?
CVE-2026-81032 is a critical-severity vulnerability; its CVE record was published on August 26, 2026. NebulaGraph exposes its runtime configuration over an unauthenticated HTTP service. Each daemon starts the web service defined in src/webservice/WebService.cpp, whose bind address defaults to all interfaces, and registers routes for reading and writing gflags alongside status and statistics.…
When was CVE-2026-81032 made public?
CVE-2026-81032 was made public on August 26, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on August 26, 2026. EchelonGraph's copy of the record carries a last-modified date of September 24, 2026; the record at its source may have been updated since.
Is CVE-2026-81032 actively exploited?
CVE-2026-81032 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (27th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-81032?
CVE-2026-81032 has a CVSS base score of 9.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-81032?
No fix for CVE-2026-81032 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (VulnCheck) lists vesoft-inc nebula versions up to and including 3.8.0 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-81032 are linked in the Vendor Advisories panel on this page.

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