CVE-2021-26945 An integer overflow leading to a heap-buffer overflow was found in OpenEXR in versions before 3.0.1.
Medium 5.5
Published
Updated
Check this codebase for CVE-2021-26945 and fix it if it is affected.
What it is: CVE-2021-26945 is a medium-severity vulnerability in Openexr Openexr, published on 8 Jun 2021.
Exploitation: There is no known exploitation of CVE-2021-26945 in the wild and no public exploit code.
Affected product: Openexr Openexr. 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-2021-26945/ (Markdown: https://insights.sbomify.com/CVE-2021-26945/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2021-26945?
CVE-2021-26945 is a medium-severity vulnerability in Openexr Openexr, published on 8 Jun 2021.
Official description
An integer overflow leading to a heap-buffer overflow was found in OpenEXR in versions before 3.0.1. An attacker could use this flaw to crash an application compiled with OpenEXR.
Which versions are affected by CVE-2021-26945?
It affects 1 product.
Products include Openexr Openexr.
How do I fix CVE-2021-26945?
Upgrade to a fixed version.
Is CVE-2021-26945 being exploited?
There is no known exploitation of CVE-2021-26945 in the wild and no public exploit code.
Other vulnerabilities in Openexr Openexr
- CVE-2023-5841 OpenEXR Heap Overflow in Scanline Deep Data Parsing
- CVE-2026-41142 OpenEXR is Vulnerable to Integer overflow in ImageChannel::resize leads to heap OOB write via OpenEXRUtil public API
- CVE-2026-42216 OpenEXR: Out-of-bounds read in `IDManifest::init()` during prefix expansion
- CVE-2017-9111 OpenEXR invalid write
- CVE-2017-9113 Memory corruption in n/a
Sources
Also known as AZL-45207, DEBIAN-CVE-2021-26945, GHSA-h5g9-4xw7-698r, UBUNTU-CVE-2021-26945.