CVE-2026-125366 Omnom through 0.9.0 SSRF via Add Feed /add_feed Route
Medium 5.3
Published
Updated
Check this codebase for CVE-2026-125366 and fix it if it is affected.
What it is: CVE-2026-125366 is a medium-severity vulnerability in asciimoo omnom, published on 9 Nov 2026.
Exploitation: There is no known exploitation of CVE-2026-125366 in the wild and no public exploit code.
Affected product: asciimoo omnom. 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-2026-125366/ (Markdown: https://insights.sbomify.com/CVE-2026-125366/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-125366?
CVE-2026-125366 is a medium-severity vulnerability in asciimoo omnom, published on 9 Nov 2026.
Official description
Omnom through 0.9.0 contains a server-side request forgery vulnerability that allows authenticated users to make server requests to arbitrary hosts by submitting feed URLs to /add_feed. Attackers can supply internal addresses that getFeedInfo, gofeed ParseURL, and fetchImageAsInlineURL fetch without validation, using reflected error messages to probe internal hosts and ports.
Weakness: CWE-918
Which versions are affected by CVE-2026-125366?
How do I fix CVE-2026-125366?
No fix has been published for CVE-2026-125366 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-125366 being exploited?
There is no known exploitation of CVE-2026-125366 in the wild and no public exploit code.
Sources
Also known as GHSA-xw2v-2m2w-4pmq.