Red Hat Security Advisory: libsolv security update
The libsolv packages provide a library for resolving package dependencies using a satisfiability algorithm. Security Fix(es): * libsolv: Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data (CVE-2026-48864) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
The libsolv package, which provides a library for resolving package dependencies using a satisfiability algorithm, contains a heap buffer overflow vulnerability (CVE-2026-48864). This occurs in the repopagestore component due to unchecked decompression of malicious .solv page data. Red Hat has issued a security advisory (RHSA-2026:36730) for Red Hat Enterprise Linux 8 and related products, rating the impact as moderate. The advisory includes updated libsolv packages that address this vulnerability.
Potential Impact
Successful exploitation of this heap buffer overflow could lead to high impact on confidentiality, integrity, and availability as indicated by the CVSS vector (Confidentiality: High, Integrity: High, Availability: High). However, the vulnerability requires local access with low privileges and user interaction. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released updated libsolv packages for Red Hat Enterprise Linux 8 and related products that fix this vulnerability. Users should apply the available security update as described in the Red Hat advisory RHSA-2026:36730 and the referenced update article (https://access.redhat.com/articles/11258). No additional mitigations are specified or required beyond applying the official patch.
Red Hat Security Advisory: libsolv security update
Description
The libsolv packages provide a library for resolving package dependencies using a satisfiability algorithm. Security Fix(es): * libsolv: Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data (CVE-2026-48864) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The libsolv package, which provides a library for resolving package dependencies using a satisfiability algorithm, contains a heap buffer overflow vulnerability (CVE-2026-48864). This occurs in the repopagestore component due to unchecked decompression of malicious .solv page data. Red Hat has issued a security advisory (RHSA-2026:36730) for Red Hat Enterprise Linux 8 and related products, rating the impact as moderate. The advisory includes updated libsolv packages that address this vulnerability.
Potential Impact
Successful exploitation of this heap buffer overflow could lead to high impact on confidentiality, integrity, and availability as indicated by the CVSS vector (Confidentiality: High, Integrity: High, Availability: High). However, the vulnerability requires local access with low privileges and user interaction. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released updated libsolv packages for Red Hat Enterprise Linux 8 and related products that fix this vulnerability. Users should apply the available security update as described in the Red Hat advisory RHSA-2026:36730 and the referenced update article (https://access.redhat.com/articles/11258). No additional mitigations are specified or required beyond applying the official patch.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:21333
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- 3.1
Threat ID: 6a3c0cf3eed863c81e239d17
Added to database: 06/24/2026, 16:59:31 UTC
Last enriched: 07/31/2026, 01:09:08 UTC
Last updated: 08/23/2026, 22:52:11 UTC
Views: 76
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