Vulnerability · Published Jun 8, 2026 · Assigned by VulDB
CVE-2026-11481yoanbernabeu grepai Postgres Embedding Cache chunker.go PostgresStore.LookupByContentHash weak hash
Low 2.5
In plain English
A low-severity broken cryptography in grepai from yoanbernabeu. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 0% of all known vulnerabilities).
Official description
A vulnerability was determined in yoanbernabeu grepai up to 0.35.0. The affected element is the function PostgresStore.LookupByContentHash of the file indexer/chunker.go of the component Postgres Embedding Cache. Executing a manipulation of the argument content_hash can lead to use of weak hash. The attack needs to be launched locally. The attack requires a high level of complexity. The exploitability is described as difficult. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/yoanbernabeu/grepai | no fix listed | GHSA-q76h-p6jh-9rw3 |
| Go | github.com/yoanbernabeu/grepai | no fix listed | GO-2026-6128 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| yoanbernabeu | grepai | 0.10.20.30.40.50.60.70.8 |
Weakness: CWE-328, CWE-327 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
References
- VDB-369101 | yoanbernabeu grepai Postgres Embedding Cache chunker.go PostgresStore.LookupByContentHash weak hash vdb-entry, technical-description
- VDB-369101 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-11481 | CVE Analysis and Report third-party-advisory
- Submit #833997 | yoanbernabeu grepai v0.35.0-1-gf6dbf8d Cache Poisoning third-party-advisory
- https://github.com/yoanbernabeu/grepai/issues/249 exploit, issue-tracking
- https://github.com/yoanbernabeu/grepai/pull/250 issue-tracking, patch
- https://github.com/yoanbernabeu/grepai/ product