CVE-2026-1501 IBM Concert Software Improper Certificate Validation
Low 3.7
Published
Updated
Check this codebase for CVE-2026-1501 and fix it if it is affected.
What it is: CVE-2026-1501 is a low-severity vulnerability in IBM Concert, published on 19 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-1501 in the wild and no public exploit code.
Affected product: IBM Concert. 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-2026-1501/ (Markdown: https://insights.sbomify.com/CVE-2026-1501/index.md)
Attackers can bypass certificate validation in IBM Concert, potentially enabling man-in-the-middle attacks or accepting untrusted connections.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-1501?
CVE-2026-1501 is a low-severity vulnerability in IBM Concert, published on 19 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
IBM Concert 1.0 through 3.0.0 is vulnerable to Improper Certificate Validation.
Weakness: CWE-295
Which versions are affected by CVE-2026-1501?
How do I fix CVE-2026-1501?
No fix has been published for CVE-2026-1501 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-1501 being exploited?
There is no known exploitation of CVE-2026-1501 in the wild and no public exploit code.
Sources
Also known as GHSA-grhr-76h5-c682.