https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 30 Sep 2026 03:32:28 +0000 https://vulnerability.circl.lu/vuln/cve-2026-6791 <p><strong>Affected:</strong> The GNU C Library glibc</p> <p>When expanding paths that begin with a tilde (~) followed by a username, the internal parse_tilde function extracts the username to determine the user&#39;s home directory. The implementation allocates memory for this username directly on the stack using the strndupa macro. Because the size of this allocation was determined by the length of the user-supplied input without any bounds checks, passing an excessively long username e.g. thousands of characters, forces the thread to exhaust its stack space. Thus if an application passes untrusted, attacker-controlled input to the wordexp function, an attacker can trigger a stack clash.</p> <p><strong>Affected:</strong> The GNU C Library glibc</p> <p>When expanding paths that begin with a tilde (~) followed by a username, the internal parse_tilde function extracts the username to determine the user&#39;s home directory. The implementation allocates memory for this username directly on the stack using the strndupa macro. Because the size of this allocation was determined by the length of the user-supplied input without any bounds checks, passing an excessively long username e.g. thousands of characters, forces the thread to exhaust its stack space. Thus if an application passes untrusted, attacker-controlled input to the wordexp function, an attacker can trigger a stack clash.</p> https://vulnerability.circl.lu/vuln/cve-2026-6791