Deserialization Vulnerability in AkariAsai's Retrieval_LM Component
CVE-2026-15535

5.3MEDIUM

Key Information:

Vendor

Akariasai

Status
Self-rag
Vendor
CVE Published:
13 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-15535?

A vulnerability exists in the AkariAsai retrieval_lm component, specifically within the Indexer.deserialize_from function found in retrieval_lm/src/index.py. This flaw allows attackers to manipulate the index_meta.faiss argument, potentially leading to unsafe deserialization. The attack can be executed remotely, which raises security concerns. Although the issue was reported early, there has been no response from the project maintainers. Given that AkariAsai practices a rolling release model, specific affected versions may not be documented, making it crucial for users to remain vigilant.

Affected Version(s)

self-rag 1fcdc420e48f50a7d7ab1ece5494221b93252e99

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-15535 - Proof of Concept

References

https://vuldb.com/vuln/377885
vdb-entrytechnical-description
https://vuldb.com/vuln/377885/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-15535
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dem00000 (VulDB User)
VulDB CNA Team
.