CVE-2026-76238

HIGHPre-NVD 7.27.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 81% 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
7.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.2Exploit: None knownExposed: 0

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

stigmem versions before 0.9.0a12 contain a broken object level authorization vulnerability in the decay sweep endpoint that allows authenticated attackers with write credentials for one tenant to execute decay operations affecting all tenants. Attackers can submit POST requests to the decay sweep endpoint with ttl_seconds=0 to expire facts across all tenants, or use dry_run to obtain cross-tenant fact counts and existence information.

CVSS v3
7.2
EG Score
7.2(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity72% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

August 19, 2026

Last Modified

August 25, 2026

Advisory Details (2)

Auto-updated Aug 19, 2026
Patch available. Sources: github.
generic

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

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

stigmem-node: decay sweep expires and counts facts across all tenants (cross-tenant BOLA) · Advisory · eidetic-labs/stigmem · GitHub

https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-6gqw-jqv7-v88m

Vendor Advisories for CVE-2026-76238(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 25× in last 7d / 117× 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 121 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-76238?
CVE-2026-76238 is a high vulnerability published on August 19, 2026. stigmem versions before 0.9.0a12 contain a broken object level authorization vulnerability in the decay sweep endpoint that allows authenticated attackers with write credentials for one tenant to execute decay operations affecting all tenants. Attackers can submit POST requests to the decay sweep…
When was CVE-2026-76238 disclosed?
CVE-2026-76238 was first published in the National Vulnerability Database on August 19, 2026, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76238 actively exploited?
CVE-2026-76238 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 81.2% of all scored CVEs.
What is the CVSS score of CVE-2026-76238?
CVE-2026-76238 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-76238?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76238, 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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