CVE-2025-15646

תיאור (מקור, אנגלית)

HTML::Gumbo versions before 0.19 for Perl disclose heap memory via type confusion. Support for the <template> element was added to libgumbo 0.10.0 in 2015, but the walk_tree function in lib/HTML/Gumbo.xs was not updated to support it. The element was treated as a text-node, where strlen() over-reads the heap block that the pointer addresses. Any caller that runs parse() with the default format => 'string', or with format => 'tree', on input containing a <template> element serializes the over-read bytes into the returned result, disclosing bounded heap contents. format => 'callback' reaches a croak on the unhandled node type and is unaffected.

מדדים

CVSS 3.1

9.8 (CRITICAL) מקור הציון: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — סבירות ניצול

1% (אחוזון 000) נכון ל-15/8/2026

CWE

CWE-125, CWE-843

קישורים

• https://bugs.debian.org/1104789
• https://github.com/bestpractical/HTML-Gumbo/commit/15c0598909d4a64f47ef0a1abc5‮…
• https://metacpan.org/release/BPS/HTML-Gumbo-0.19/changes
• http://www.openwall.com/lists/oss-security/2026/07/01/7