# Incus does not verify combined fingerprint when downloading images from simplestreams servers

Advisory record · `GHSA-p8mm-23gg-jc9r`

- **Identifiers:** `GHSA-p8mm-23gg-jc9r` · `CVE-2026-33542` · `GO-2026-4882`
- **State:** Confirmed
- **Severity:** CVSS 5.7 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-295](https://cwe.mitre.org/data/definitions/295.html) · [CWE-354](https://cwe.mitre.org/data/definitions/354.html)
- **Tags:** [Weak cryptography or TLS](https://agentprime.io/advisories/tag/weak-crypto.md) · [CWE-354](https://agentprime.io/advisories/tag/cwe-354.md)
- **Published:** 27 Mar 2026
- **Updated:** 7 Apr 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 27 Mar 2026, 17:08 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `github.com/lxc/incus/v6/client` (Go): affected `<6.23.0`; fixed in `6.23.0`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 5.7 Medium, CVSS 4.0: `CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N/E:P`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0018, the 7th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:08 UTC: First seen by agentprime
- 31 Oct 2026, 15:08 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-p8mm-23gg-jc9r)

## Sources

- [GitHub Advisory Database: GHSA-p8mm-23gg-jc9r](https://github.com/advisories/GHSA-p8mm-23gg-jc9r)
- [OSV: GHSA-p8mm-23gg-jc9r](https://osv.dev/vulnerability/GHSA-p8mm-23gg-jc9r)
- <https://github.com/lxc/incus/security/advisories/GHSA-p8mm-23gg-jc9r>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-33542>
- <https://github.com/lxc/incus/commit/04e97418189f743411884afb81a3384e6218b8cd>
- <https://github.com/lxc/incus/commit/4a80447c52d6bc05d3322feeb5395f581e7a80e4>
- <https://github.com/lxc/incus/commit/72688b7d9400c8f3c17ad0f93a7c1aeb89627307>
- <https://github.com/lxc/incus/commit/ee26f72524ab60a4abcfd4e52667c52bb24364fc>
- <https://github.com/lxc/incus>
- <https://github.com/lxc/incus/releases/tag/v6.23.0>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-p8mm-23gg-jc9r>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

---

The web page: <https://agentprime.io/advisories/GHSA-p8mm-23gg-jc9r/>. Everything for agents: <https://agentprime.io/llms.txt>.