CVE-2026-76237

HIGHPre-NVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 78% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
8.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.6Exploit: None knownExposed: 0

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

stigmem-node before 0.9.0a12 contains a broken object level authorization (cross-tenant BOLA) vulnerability in the quarantine review endpoints. On multi-tenant deployments running the opt-in stigmem-plugin-multi-tenant, the list/count queries and _get_quarantined_fact in routes/quarantine.py lacked a tenant_id predicate and the garden lookup was not tenant-scoped, allowing a tenant administrator with only a plain tenant write capability to list, read, and admit or reject quarantined facts belonging to other tenants via the /v1/quarantine endpoints. Default single-tenant deployments are not affected.

CVSS v3
8.6
EG Score
8.6(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity86% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

August 19, 2026

Last Modified

August 21, 2026

Advisory Details (2)

Auto-updated Aug 19, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

stigmem before 0.9.0a12 Cross-Tenant BOLA via quarantine | Advisories | VulnCheck

https://www.vulncheck.com/advisories/stigmem-before-0a12-cross-tenant-bola-via-quarantine
github Patch Available🟡 PoC Available

stistigmem-node: quarantine review surface exposes and mutates other tenants' quarantined facts (cross-tenant BOLA) · Advisory · eidetic-labs/stigmem · GitHub

https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-xhv3-q4xx-349r

Vendor Advisories for CVE-2026-76237(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 rangeFixed inDependents
stigmem-node0.9.0a1 ... 0.9.0a9 (11 versions)0.9.0a12—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 27× 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 129 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-76237?
CVE-2026-76237 is a high vulnerability published on August 19, 2026. stigmem-node before 0.9.0a12 contains a broken object level authorization (cross-tenant BOLA) vulnerability in the quarantine review endpoints. On multi-tenant deployments running the opt-in stigmem-plugin-multi-tenant, the list/count queries and getquarantinedfact in routes/quarantine.py lacked a…
When was CVE-2026-76237 disclosed?
CVE-2026-76237 was first published in the National Vulnerability Database on August 19, 2026, with the most recent update on August 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76237 actively exploited?
CVE-2026-76237 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 78.2% of all scored CVEs.
What is the CVSS score of CVE-2026-76237?
CVE-2026-76237 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2026-76237?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76237, 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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