CVE-2026-57956

MEDIUMPre-NVD 6.46.4
EchelonGraph scoreMEDIUM confidence

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

Score 6.4 from GitHub Security Advisory published 2026-06-29. A secondary CVSS source baseline 6.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Elevated
6.4EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (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: 6.4Exploit: 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.

SigNoz before 0.133.0 contains a broken access control vulnerability that allows authenticated users to access other organizations' alert rules by supplying a target rule UUID, as the alert rule store predicates fail to filter by organization ID. Attackers can read, edit, and delete alert rules belonging to other organizations by exploiting the missing tenant isolation check, bypassing multi-tenant access controls.

CVSS v3
6.4
EG Score
6.4MEDIUMmedium confidence
EG Risk
45
EG Risk 45/100

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)
Severity64% × 45%
The EG Score, 6.4 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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, 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 or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (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

June 29, 2026

Last Modified

July 20, 2026

Advisory Details (2)

Auto-updated Jun 29, 2026
No fix on record yet.
Web page

SigNoz 0.130.1 - Cross-Organization Insecure Direct Object Reference in Alert Rules | Advisories | VulnCheck

https://www.vulncheck.com/advisories/signoz-cross-organization-insecure-direct-object-reference-in-alert-rules
Web page

[security] cross-organization IDOR on alert rules (read/edit/delete by UUID, no org scoping) · Issue #11830 · SigNoz/signoz · GitHub

https://github.com/SigNoz/signoz/issues/11830

Vendor Advisories for CVE-2026-57956(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 10× in last 7d / 36× 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 203 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 103 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 19:37 UTCEG score recompute
  2. 2026-10-11 16:52 UTCEG score recompute
  3. 2026-10-11 14:14 UTCEG score recompute
  4. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  5. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  6. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  7. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  8. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  9. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  10. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  11. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  12. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  13. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  14. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  15. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  16. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  17. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  18. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  19. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  20. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  21. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  22. 2026-09-23 07:29 UTCEG score recompute
  23. 2026-09-23 07:29 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  24. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  25. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 28th percentile
Show 75 more
  1. 2026-09-18 06:57 UTCEG score recompute
  2. 2026-09-18 06:57 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  3. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  4. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  5. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  6. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  7. 2026-09-14 00:52 UTCEG score recompute
  8. 2026-09-14 00:52 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  9. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  10. 2026-09-12 15:14 UTCEG score recompute
  11. 2026-09-12 15:14 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  12. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  13. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  14. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  15. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  16. 2026-09-06 14:42 UTCEG score recompute
  17. 2026-09-06 14:42 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  18. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  19. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  20. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  21. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  22. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  23. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  24. 2026-08-30 18:31 UTCEG score recompute
  25. 2026-08-30 18:31 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  26. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  27. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  28. 2026-08-27 22:46 UTCEG score recompute
  29. 2026-08-27 22:46 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  30. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  31. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  32. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  33. 2026-08-24 12:40 UTCEG score recompute
  34. 2026-08-24 12:40 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  35. 2026-08-23 09:05 UTCEG score recompute
  36. 2026-08-23 09:05 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  37. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  38. 2026-08-22 08:52 UTCEG score recompute
  39. 2026-08-22 08:52 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  40. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  41. 2026-08-21 07:20 UTCEG score recompute
  42. 2026-08-21 07:20 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  43. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  44. 2026-08-20 07:08 UTCEG score recompute
  45. 2026-08-20 07:08 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  46. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  47. 2026-08-19 06:57 UTCEG score recompute
  48. 2026-08-19 06:57 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  49. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  50. 2026-08-18 06:32 UTCEG score recompute
  51. 2026-08-18 06:32 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  52. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  53. 2026-08-17 03:07 UTCEG score recompute
  54. 2026-08-17 03:07 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  55. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  56. 2026-08-16 02:55 UTCEG score recompute
  57. 2026-08-16 02:55 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  58. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  59. 2026-08-15 02:44 UTCEG score recompute
  60. 2026-08-15 02:43 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  61. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  62. 2026-08-14 02:29 UTCEG score recompute
  63. 2026-08-14 02:29 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  64. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  65. 2026-08-13 02:18 UTCEG score recompute
  66. 2026-08-13 02:18 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  67. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  68. 2026-08-12 02:07 UTCEG score recompute
  69. 2026-08-12 02:07 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  70. 2026-08-11 01:55 UTCEG score recompute
  71. 2026-08-11 01:55 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  72. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  73. 2026-08-10 01:44 UTCEG score recompute
  74. 2026-08-10 01:44 UTCGHSA enrichmentGHSA-3vgg-7h5g-62mm · GitHub CVSS 6.4
  75. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 11th percentile

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Frequently asked(5)

What is CVE-2026-57956?
CVE-2026-57956 is a medium-severity vulnerability; its CVE record was published on June 29, 2026. SigNoz before 0.133.0 contains a broken access control vulnerability that allows authenticated users to access other organizations' alert rules by supplying a target rule UUID, as the alert rule store predicates fail to filter by organization ID. Attackers can read, edit, and delete alert rules…
When was CVE-2026-57956 made public?
CVE-2026-57956 was made public on June 23, 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 June 29, 2026. EchelonGraph's copy of the record carries a last-modified date of July 20, 2026; the record at its source may have been updated since.
Is CVE-2026-57956 actively exploited?
CVE-2026-57956 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-2026-57956?
CVE-2026-57956 has a CVSS base score of 6.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-57956?
No fix for CVE-2026-57956 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 vendor advisories EchelonGraph has for CVE-2026-57956 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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