CVE-2026-122140 Trawl 1.5.0 before 1.10.0 SSRF via IPv4-mapped IPv6 MCP Policy Bypass
Medium 6.3
Published
Updated
Check this codebase for CVE-2026-122140 and fix it if it is affected.
What it is: CVE-2026-122140 is a medium-severity vulnerability in germondai trawl, published on 4 Nov 2026.
Exploitation: There is no known exploitation of CVE-2026-122140 in the wild and no public exploit code.
Affected product: germondai trawl. No package-level version data is available, so check the vendor advisory linked from the reference page.
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-2026-122140/ (Markdown: https://insights.sbomify.com/CVE-2026-122140/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-122140?
CVE-2026-122140 is a medium-severity vulnerability in germondai trawl, published on 4 Nov 2026.
Official description
Trawl 1.5.0 before 1.10.0 contains a server-side request forgery vulnerability that allows unauthenticated attackers to bypass the MCP outbound URL policy using IPv4-mapped IPv6 addresses. Attackers can supply hex-normalized addresses like ::ffff:7f00:1 directly or via redirects to fetch loopback, private, and cloud metadata services and read responses.
Weakness: CWE-918
Which versions are affected by CVE-2026-122140?
How do I fix CVE-2026-122140?
No fix has been published for CVE-2026-122140 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-122140 being exploited?
There is no known exploitation of CVE-2026-122140 in the wild and no public exploit code.
Sources
Also known as GHSA-42jx-rr99-g8v2, GHSA-mj45-84p2-v77q.