# CVE-2026-11479: yoanbernabeu grepai Qdrant Backend chunker.go weak hash

> A weak hash implementation in the Qdrant backend allows attackers to bypass security checks, requiring a patch for the grepai Go library.

- **Severity:** Low 2.3 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 8 Jun 2026
- **Updated:** 9 Jun 2026
- **Also known as:** GHSA-6h35-9p2w-3j3r, GO-2026-6125

## What is CVE-2026-11479?

CVE-2026-11479 is a low-severity vulnerability in yoanbernabeu grepai, published on 8 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability has been found in yoanbernabeu grepai 0.35.0. This issue affects some unknown processing of the file indexer/chunker.go of the component Qdrant Backend. Such manipulation leads to use of weak hash. The attack may be performed from remote. Attacks of this nature are highly complex. The exploitability is assessed as difficult. The exploit has been disclosed to the public and may be used. The pull request to fix this issue awaits acceptance.

Weakness: CWE-328 (Use of Weak Hash), CWE-327 (Use of a Broken or Risky Cryptographic Algorithm)

## Which versions are affected by CVE-2026-11479?

3 open source packages ship an affected version, including github.com/yoanbernabeu/grepai.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `github.com/yoanbernabeu/grepai` | Go | All versions | None |
| `github.com/yoanbernabeu/grepai` | Go | All versions to 0.35.0 | None |
| `github.com/yoanbernabeu/grepai` | Go | All versions to 0.35.0 | None |

## How do I fix CVE-2026-11479?

Apply the vendor's patch.

## Is CVE-2026-11479 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11479 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11479 and fix it if it is affected.

What it is: CVE-2026-11479 is a low-severity vulnerability in yoanbernabeu grepai, published on 8 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11479 exists.

Affected packages and fixed versions:
- github.com/yoanbernabeu/grepai (Go): affected all versions; no fix listed
- github.com/yoanbernabeu/grepai (Go): affected all versions up to 0.35.0; no fix listed
- github.com/yoanbernabeu/grepai (Go): affected all versions up to 0.35.0; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-11479/ (Markdown: https://insights.sbomify.com/CVE-2026-11479/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11479
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11479
- OSV: https://osv.dev/vulnerability/CVE-2026-11479

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-11479/
Summaries are generated and may contain mistakes; the official description above is the record.