CVE-2026-85391

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-03. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

Peppermint through 0.5.5 contains a hardcoded JWT signing secret in docker-compose.yml that allows unauthenticated attackers to forge session tokens for any account. Attackers can use the published secret to mint valid tokens for arbitrary user IDs and access protected endpoints without credentials.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

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
Severity98% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

September 3, 2026

Last Modified

September 9, 2026

Advisory Details (5)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

Peppermint through 0.5.5 Use of Hard-coded JWT Signing Secret in docker-compose.yml | Advisories | VulnCheck

https://www.vulncheck.com/advisories/peppermint-through-0.5.5-use-of-hard-coded-jwt-signing-secret-in-docker-compose-yml
generic

Hardcoded JWT Secret in docker-compose.yml Enables Token Forgery · Issue #528 · Peppermint-Lab/peppermint · GitHub

https://github.com/Peppermint-Lab/peppermint/issues/528
generic

peppermint/docker-compose.yml at 0.5.5 · Peppermint-Lab/peppermint · GitHub

https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/docker-compose.yml
generic

peppermint/apps/api/src/lib/jwt.ts at 0.5.5 · Peppermint-Lab/peppermint · GitHub

https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/lib/jwt.ts
generic

GitHub - Peppermint-Lab/peppermint: An open source issue management & help desk solution. A zendesk & jira alternative · GitHub

https://github.com/Peppermint-Lab/peppermint

Vendor Advisories for CVE-2026-85391(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 52× in last 7d / 124× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 124 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-85391?
CVE-2026-85391 is a critical vulnerability published on September 3, 2026. Peppermint through 0.5.5 contains a hardcoded JWT signing secret in docker-compose.yml that allows unauthenticated attackers to forge session tokens for any account. Attackers can use the published secret to mint valid tokens for arbitrary user IDs and access protected endpoints without credentials.
When was CVE-2026-85391 disclosed?
CVE-2026-85391 was first published in the National Vulnerability Database on September 3, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-85391 actively exploited?
CVE-2026-85391 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 71.6% of all scored CVEs.
What is the CVSS score of CVE-2026-85391?
CVE-2026-85391 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-85391?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-85391, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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