Vulnerability in libsolv (DEBIAN-CVE-2026-48863)
Summary
Vulnerability in libsolv (DEBIAN-CVE-2026-48863). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 0.7.38-1 or later.
Original description
The description as published by the source.
A flaw was found in libsolv. A stack-based buffer overflow vulnerability exists in the PGP verification component due to incorrect length handling when copying EdDSA 's' MPI into a stack buffer. A remote attacker could craft a malicious Ed25519 PGP signature with mismatched MPI lengths. Processing this crafted signature could lead to a denial of service in automated package or repository processing workflows.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A weakness called DEBIAN-CVE-2026-48863 was discovered in libsolv.
Severity is Info. Low severity or not yet rated.
What you should do: update the affected software to the latest version. If unsure, ask your IT team or search the vendor's site for "libsolv DEBIAN-CVE-2026-48863".
DEBIAN-CVE-2026-48863 (libsolv). Severity: Info.
Response plan:
- Check the vendor advisory for affected versions and the patched release.
- If a vulnerable version is running in production, schedule maintenance (urgency from KEV/CVSS).
- If no patch yet, mitigate via WAF rule, disabling the affected feature, etc.
- Monitor logs / SIEM for known IOC and PoC signatures of this CVE.
PoCs and fix commits: see the 'References' section, MITRE, and NVD.
A weakness (DEBIAN-CVE-2026-48863) in libsolv. A serious software flaw has been identified.
Target versions of libsolv (see vendor advisory). If running in production, identify exposure immediately.
Severity: Info. Low severity or not yet rated.
Update to the patched release as listed in the vendor advisory.
If a patch is not yet available, consider disabling the affected feature, applying WAF rules, blocking via network ACLs, or isolating the vulnerable version.
Check version information, scan dependencies via SBOM, and monitor SIEM for IOC and PoC signatures related to this CVE.
Affected packages
References
- advisory security-tracker.debian.org