CVE-2026-15535

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-07-13. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: Elevated riskExposed: 0

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

A vulnerability was determined in AkariAsai self-rag up to 1fcdc420e48f50a7d7ab1ece5494221b93252e99. Affected by this issue is the function Indexer.deserialize_from of the file retrieval_lm/src/index.py of the component retrieval_lm. Executing a manipulation of the argument index_meta.faiss can lead to deserialization. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. This product operates on a rolling release basis, ensuring continuous delivery. Consequently, there are no version details for either affected or updated releases. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3
6.3
EG Score
6.3(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

July 13, 2026

Last Modified

July 13, 2026

Advisory Details (3)

Auto-updated Jul 13, 2026
🔬 Proof of concept available. No patch confirmed yet. Sources: github_pr.
generic

GitHub - AkariAsai/self-rag: This includes the original implementation of SELF-RAG: Learning to Retrieve, Generate and Critique through self-reflection by Akari Asai, Zeqiu Wu, Yizhong Wang, Avirup Sil, and Hannaneh Hajishirzi. · GitHub

https://github.com/AkariAsai/self-rag/
github_pr

Avoid pickle for retriever index metadata

Upstream fix in progress (PR #106 · AkariAsai/self-rag, state=open)

https://github.com/AkariAsai/self-rag/pull/106
generic🟡 PoC Available

Arbitrary Code Execution via Unsafe Pickle Deserialization in Retriever Index Cache · Issue #105 · AkariAsai/self-rag · GitHub

https://github.com/AkariAsai/self-rag/issues/105

Vendor Advisories for CVE-2026-15535(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 27× 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. 2026-07-26 14:54 UTCEPSS rescore
  2. 2026-07-26 14:54 UTCEPSS rescore
  3. 2026-07-26 11:58 UTCEG score recompute
  4. 2026-07-26 11:58 UTCGHSA enrichment
  5. 2026-07-25 14:17 UTCEPSS rescore
  6. 2026-07-24 14:17 UTCEPSS rescore
  7. 2026-07-23 14:18 UTCEPSS rescore
  8. 2026-07-23 03:05 UTCEG score recompute
  9. 2026-07-22 14:08 UTCEPSS rescore
  10. 2026-07-21 15:24 UTCEPSS rescore
  11. 2026-07-20 17:08 UTCEPSS rescore
  12. 2026-07-19 14:30 UTCEPSS rescore
  13. 2026-07-19 02:28 UTCEPSS rescore
  14. 2026-07-18 10:04 UTCEPSS rescore
  15. 2026-07-17 01:07 UTCGHSA enrichment
  16. 2026-07-16 17:02 UTCEPSS rescore
  17. 2026-07-16 02:09 UTCGHSA enrichment
  18. 2026-07-15 16:57 UTCEPSS rescore
  19. 2026-07-15 03:11 UTCGHSA enrichment
  20. 2026-07-15 02:00 UTCEPSS rescore
  21. 2026-07-14 04:15 UTCGHSA enrichment
  22. 2026-07-13 22:30 UTCEPSS rescore
  23. 2026-07-13 16:24 UTCNVD updateCVSS v4 → 2.1
  24. 2026-07-13 15:32 UTCMITRE cvelistV5CVSS v4 → 5.3
  25. 2026-07-13 06:20 UTCNVD updateCVSS v4 → 2.1
Show 2 more
  1. 2026-07-13 05:18 UTCEG score recompute
  2. 2026-07-13 05:17 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15535?
CVE-2026-15535 is a medium vulnerability published on July 13, 2026. A vulnerability was determined in AkariAsai self-rag up to 1fcdc420e48f50a7d7ab1ece5494221b93252e99. Affected by this issue is the function Indexer.deserializefrom of the file retrievallm/src/index.py of the component retrievallm. Executing a manipulation of the argument indexmeta.faiss can lead to…
When was CVE-2026-15535 disclosed?
CVE-2026-15535 was first published in the National Vulnerability Database on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15535 actively exploited?
CVE-2026-15535 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 84.0% of all scored CVEs.
What is the CVSS score of CVE-2026-15535?
CVE-2026-15535 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-15535?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15535, 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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