CVE-2026-48864

HIGH
Published May 26, 2026 Modified May 28, 2026 CWE-787

Description

A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled compressed data within `.solv` files due to insufficient input validation. An attacker can provide a specially crafted `.solv` file, which, when processed by a vulnerable application, can lead to out-of-bounds memory access. This could result in information disclosure, alteration of program execution, or a denial of service.

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CVSS v3.1 Score

7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0016
Probability of exploitation
0.05%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

Affected Products

Vendor Product
opensuse libsolv
redhat hardened_images
redhat openshift_container_platform
redhat satellite
redhat update_infrastructure
redhat enterprise_linux
redhat enterprise_linux
redhat enterprise_linux
redhat enterprise_linux

References

Frequently Asked Questions

What is CVE-2026-48864? +
A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled compressed data within `.solv` files due to insufficient input validation. An attacker can provide a specially crafted `.solv` file, which, when processed by a vulnerable application, can lead to out-of-bounds memory access. This could result in information disclosure, alteration of program execution, or a denial of service. It has a CVSS v3.1 base score of 7.8 (HIGH).
How severe is CVE-2026-48864? +
CVE-2026-48864 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0016, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-48864? +
CVE-2026-48864 affects products from opensuse, redhat, specifically: enterprise_linux, hardened_images, libsolv, openshift_container_platform, satellite, update_infrastructure. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-48864? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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