CVE-2026-61736

CRITICALPre-NVD 9.39.3
EchelonGraph scoreMEDIUM confidence

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

This critical-severity CVE scores 9.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 1.4% (72nd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
9.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.4%CVSS: 9.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.4, the server defaults to CORS_ORIGINS=* combined with allow_credentials=True in lightrag/api/lightrag_server.py, causing Starlette CORSMiddleware to effectively whitelist every origin for credentialed cross-origin requests. Any malicious website visited by an authenticated LightRAG user can silently make authenticated API requests, exfiltrating documents and knowledge graph data or performing destructive actions such as deleting the document store. This vulnerability is fixed in 1.5.4.

CVSS v3
9.3
EG Score
9.3CRITICALmedium confidence
EG Risk
42
EG Risk 42/100

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)
Severity93% × 45%
The EG Score, 9.3 of 10.
Exploitation1.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
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 none (CISA Vulnrichment) · Automatable no (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: A fix is available. Apply it within your standard update timelines.
EPSS PROB
1.4%
EPSS %ILE
72nd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (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)14 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 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

July 15, 2026

Last Modified

July 15, 2026

Advisory Details (6)

Auto-updated Oct 8, 2026
Patch available. Sources: github, github_commit, github_pr, github_release.
GitHub advisoryMentions a patch (unverified)

CORS Wildcard + Credentials Enables Any-Origin Credentialed Requests · Advisory · HKUDS/LightRAG · GitHub

https://github.com/HKUDS/LightRAG/security/advisories/GHSA-6x6h-qqr7-855w
GitHub release Patch Available

v1.5.4

Patch available: HKUDS/LightRAG v1.5.4

https://github.com/HKUDS/LightRAG/releases/tag/v1.5.4
GitHub pull request Patch Available

fix(api): don't pair wildcard CORS origin with credentials

Patch available: HKUDS/LightRAG v1.5.4 (PR #3317 merged 2026-06-24)

https://github.com/HKUDS/LightRAG/pull/3317
GitHub commit Patch Available

commit ebba6548639c (HKUDS/LightRAG)

Patch available: HKUDS/LightRAG v1.5.4 (contains commit ebba6548639c)

https://github.com/HKUDS/LightRAG/commit/ebba6548639c0f2e8919100eff76b401f1222252
GitHub commit Patch Available

commit df68d75f9dc2 (HKUDS/LightRAG)

Patch available: HKUDS/LightRAG v1.5.4 (contains commit df68d75f9dc2)

https://github.com/HKUDS/LightRAG/commit/df68d75f9dc29dd340ffb6794b48f48c4fdc9a2d
GitHub commit Patch Available

commit 09567a4c983f (HKUDS/LightRAG)

Patch available: HKUDS/LightRAG v1.5.4 (contains commit 09567a4c983f)

https://github.com/HKUDS/LightRAG/commit/09567a4c983f580050db63569dd477122c058c3d

Vendor Advisories for CVE-2026-61736(1)

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

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
lightrag-hku0.0.2 ... 1.5.3 (87 versions)
  • every version up to 1.5.4: fixed in 1.5.4
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 31× 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 99 of 131 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 32 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 11:02 UTCEG score recompute
  2. 2026-10-13 16:34 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  3. 2026-10-13 08:43 UTCEG score recompute
  4. 2026-10-12 16:34 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  5. 2026-10-12 15:50 UTCEG score recompute
  6. 2026-10-11 19:34 UTCEG score recompute
  7. 2026-10-11 16:49 UTCEG score recompute
  8. 2026-10-11 14:11 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  12. 2026-10-08 17:13 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  13. 2026-10-07 23:48 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  14. 2026-10-06 15:18 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  15. 2026-10-05 17:43 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  16. 2026-10-03 14:26 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  17. 2026-10-02 17:56 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  18. 2026-10-01 19:50 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  19. 2026-10-01 12:41 UTCEG score recompute
  20. 2026-09-30 15:03 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  21. 2026-09-28 13:51 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  22. 2026-09-28 08:46 UTCEG score recompute
  23. 2026-09-26 15:59 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  24. 2026-09-24 08:53 UTCEG score recompute
  25. 2026-09-23 17:54 UTCEPSS rescoreEPSS 1.4% · 71st percentile
Show 74 more
  1. 2026-09-23 03:19 UTCEG score recompute
  2. 2026-09-20 20:16 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  3. 2026-09-18 19:28 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  4. 2026-09-18 04:46 UTCEG score recompute
  5. 2026-09-16 14:08 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  6. 2026-09-16 05:15 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  7. 2026-09-13 23:13 UTCEG score recompute
  8. 2026-09-13 07:16 UTCEG score recompute
  9. 2026-09-11 21:46 UTCEG score recompute
  10. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  11. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  12. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  13. 2026-09-08 00:56 UTCEG score recompute
  14. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  15. 2026-09-06 17:44 UTCEG score recompute
  16. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  17. 2026-09-05 20:51 UTCEG score recompute
  18. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  19. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  20. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  21. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  22. 2026-08-30 21:46 UTCEG score recompute
  23. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  24. 2026-08-30 03:53 UTCEG score recompute
  25. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  26. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  27. 2026-08-27 21:28 UTCEG score recompute
  28. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  29. 2026-08-26 23:09 UTCEG score recompute
  30. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  31. 2026-08-25 19:03 UTCEG score recompute
  32. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  33. 2026-08-24 19:33 UTCEG score recompute
  34. 2026-08-24 12:18 UTCEG score recompute
  35. 2026-08-23 02:20 UTCEG score recompute
  36. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  37. 2026-08-22 00:43 UTCEG score recompute
  38. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  39. 2026-08-20 23:07 UTCEG score recompute
  40. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  41. 2026-08-20 00:17 UTCEG score recompute
  42. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  43. 2026-08-18 20:00 UTCEG score recompute
  44. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  45. 2026-08-17 15:40 UTCEG score recompute
  46. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  47. 2026-08-16 18:29 UTCEG score recompute
  48. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  49. 2026-08-16 05:45 UTCEG score recompute
  50. 2026-08-15 04:16 UTCEG score recompute
  51. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  52. 2026-08-13 22:36 UTCEG score recompute
  53. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  54. 2026-08-12 16:57 UTCEG score recompute
  55. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  56. 2026-08-11 15:19 UTCEG score recompute
  57. 2026-08-11 02:34 UTCEG score recompute
  58. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  59. 2026-08-09 16:41 UTCEG score recompute
  60. 2026-08-09 13:47 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  61. 2026-08-08 19:30 UTCEG score recompute
  62. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  63. 2026-08-07 18:04 UTCEG score recompute
  64. 2026-08-06 16:37 UTCEG score recompute
  65. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  66. 2026-08-05 19:19 UTCEG score recompute
  67. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  68. 2026-08-04 17:16 UTCEG score recompute
  69. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  70. 2026-08-04 13:01 UTCEG score recompute
  71. 2026-08-04 10:39 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  72. 2026-08-03 12:53 UTCEG score recompute
  73. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  74. 2026-08-02 02:33 UTCEG score recompute

Public detection templates

(1 reference)

A public Nuclei detection template is referenced for this CVE. A detection template checks whether a system is affected; it is not necessarily exploit code.

  • Nucleihttp/cves/2026/CVE-2026-61736.yaml
    Published Sep 14, 2026

    LightRAG <= 1.5.3 - Credentialed CORS Wildcard

    Open source ↗

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-61736?
CVE-2026-61736 is a critical-severity vulnerability; its CVE record was published on July 15, 2026. LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.4, the server defaults to CORSORIGINS=* combined with allowcredentials=True in lightrag/api/lightrag_server.py, causing Starlette CORSMiddleware to effectively whitelist every origin for credentialed cross-origin…
When was the CVE record for CVE-2026-61736 published?
The CVE record for CVE-2026-61736 was published on July 15, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 15, 2026; the record at its source may have been updated since.
Is CVE-2026-61736 actively exploited?
CVE-2026-61736 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.4% probability of exploitation in the next 30 days (72nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-61736?
CVE-2026-61736 has a CVSS base score of 9.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-61736?
A fix for CVE-2026-61736 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-61736 are linked in the Vendor Advisories panel on this page.

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