AUGUST 24, 2026
Live Feed
Back to database
Case File

CVE-2026-56288

MEDIUM · CVSS 5.5 EPSS 0.11%

Source: NVD + CISA KEV + EPSS · Published 2026-07-09 · Last synced 2026-08-08

CyberRota Analysis

AI-Generated

GNU patch is susceptible to a NULL pointer dereference due to improper handling of consecutive end-of-file newline markers in specially crafted unified-diff patch files. This vulnerability can lead to application crashes, resulting in a denial of service when processing malicious patch files. Developers and system administrators using GNU patch should prioritize this issue to mitigate potential disruptions in service.

CVE
CVE-2026-56288
Severity
MEDIUM
CVSS
5.5
EPSS
0.11%

Original NVD Description

GNU patch is vulnerable to a NULL pointer dereference when processing a specially crafted unified-diff patch file. Improper handling of consecutive end-of-file newline markers can corrupt internal hunk (single block of changes in diff) data structures, causing the application to pass a NULL pointer to fwrite() during patch processing. An attacker can trigger this condition with a malicious patch file, causing the utility to crash and resulting in a denial of service. This issue has been fixed in the commit e6d6a4e021660679d7fc9150f981d4920f722313

Related CVEs

Other vulnerabilities affecting the same vendor(s)