CVE-2026-9149

🔶 medium

Summary

A flaw was found in libsolv. This heap buffer overflow vulnerability occurs when a victim processes a specially crafted `.solv` file containing negative size values in the `repo_add_solv` function. This leads to an undersized memory allocation and a subsequent out-of-bounds write. An attacker could exploit this to cause a denial of service (DoS).

CVSS Score

6.5

Medium

EPSS Score

0.3

Exploit Probability

Published Date

2026-05-21

First Seen: 2026-05-21

📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 47.8% of all 329,456 vulnerabilities in our database.

#172,059

Below average severity

Severity Percentile

🎯 CISA SSVC Assessment Updated: May 21, 2026

🔍 Exploitation Status

Poc

Proof-of-concept available

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Partial

Limited system impact

🏆 Discovered By

This issue was discovered by AISLE in partnership with Red Hat.

SSVC data provided by CISA

Last Modified 2026-06-24

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE IDs (Weakness Types)

CWE-122

📦 Affected Products 8

Vendor	Product	Status	Affected Versions
redhat	enterprise_linux	Affected	v10.0
redhat	enterprise_linux	Affected	v7.0
redhat	enterprise_linux	Affected	v8.0
redhat	enterprise_linux	Affected	v9.0
redhat	satellite	Affected	v6.0
redhat	openshift_container_platform	Affected	v4.0
opensuse	libsolv	Affected	< 0.7.36
redhat	update_infrastructure	Affected	v4

🔗 References 4

https://access.redhat.com/errata/RHSA-2026:28236

https://access.redhat.com/security/cve/CVE-2026-9149

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2460380

Issue Tracking Third Party Advisory

https://github.com/openSUSE/libsolv/pull/617

Issue Tracking Patch

🔗 Related CVEs 6

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CVE-2026-1767	🔶 medium	5.6	0.2	A flaw was found in the GNOME localsearch (previously known as tracker-miners) MP3 Extractor `tracker-extract-mp3` compo...	2026-06-16
CVE-2026-11785	🔶 medium	4.3	0.2	A flaw was found in 389 Directory Server. A type confusion in the SSO token extended operation handler causes partial st...	2026-06-09
CVE-2026-11786	ℹ️ low	1.9	0.2	A flaw was found in 389 Directory Server. The LDIF parser reads past the end of a heap buffer when processing attribute ...	2026-06-09
CVE-2026-11787	🔶 medium	5.0	0.2	A flaw was found in 389 Directory Server. The ldap_utf8prev() function reads bytes before the start of a buffer without ...	2026-06-09

These CVEs affect the same products