Quick answers
- Is CVE-2026-9150 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-9150 being exploited in the wild.
- How severe is CVE-2026-9150?
- Medium severity, with a CVSS score of 6.5, published 20 May 2026.
- Which products and versions are affected?
- Opensuse Libsolv <= 0.7.36.
- Is there a fix for CVE-2026-9150?
- A patch was published on 2026-04-22: Fix merged into libsolv master branch Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-9150 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-9150?
- Check whether you run Opensuse Libsolv at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A stack-based buffer overflow exists in libsolv's 'control2solvable()' function within 'ext/repo_deb.c'. The vulnerability is caused by using a fixed-size stack buffer (65 bytes) intended for 32-byte digests, while the parser accepts and validates longer SHA384 and SHA512 tags. When a 128-character SHA512 checksum is encountered, a 'strcpy' operation overflows the buffer by 64 bytes. An attacker can exploit this by providing a crafted Debian 'Packages' file. While primarily resulting in a denial of service (DoS) via memory corruption, stack corruption is present. The issue was addressed in the openSUSE/libsolv GitHub repository by enlarging the buffer and using safer memory copy operations.
Affected products
- openSUSE libsolv <= 0.7.36
Timeline
- 2026-04-21: other: Vulnerability reported to Red Hat Bugzilla
- 2026-04-22: patched: Fix merged into libsolv master branch
- 2026-05-20: disclosed: CVE published and NVD record created