CVE-2026-4965

HIGHNVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory published 2026-03-27. NVD baseline CVSS 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.3Exploit: NoneExposed: 0

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

A vulnerability was detected in letta-ai letta 0.16.4. This issue affects the function resolve_type of the file letta/functions/ast_parsers.py of the component Incomplete Fix CVE-2025-6101. Performing a manipulation results in improper neutralization of directives in dynamically evaluated code. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
7.3
EG Score
7.3(medium)
EPSS
44.9%
KEV
Not listed

Published

March 27, 2026

Last Modified

April 29, 2026

Advisory Details (1)

Auto-updated Apr 29, 2026
No patch confirmed yet.
generic

RCE via eval() Injection in Type Annotation Coercion (Incomplete Fix for CVE-2025-6101) · GitHub

https://gist.github.com/YLChen-007/fc09bc447a73bba526c1642d9ce73ca5

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 42× 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.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-4965?
CVE-2026-4965 is a high vulnerability published on March 27, 2026. A vulnerability was detected in letta-ai letta 0.16.4. This issue affects the function resolvetype of the file letta/functions/astparsers.py of the component Incomplete Fix CVE-2025-6101. Performing a manipulation results in improper neutralization of directives in dynamically evaluated code. The…
When was CVE-2026-4965 disclosed?
CVE-2026-4965 was first published in the National Vulnerability Database on March 27, 2026, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4965 actively exploited?
CVE-2026-4965 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 44.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-4965?
CVE-2026-4965 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-4965?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4965, 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.

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