Bug 2501382 (CVE-2026-57074)

Summary: CVE-2026-57074 perl-XML-Bare: perl-XML-Bare: Out-of-bounds read via crafted XML input
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in perl-XML-Bare. The `parserc_parse` function, which handles XML parsing, contains an unbounded character lookahead vulnerability. A remote attacker could exploit this by providing a specially crafted, truncated XML string. This could cause the parser to attempt to read data beyond the intended memory buffer, leading to an out-of-bounds read.
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Bug Depends On: 2512103, 2512104    
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Description OSIDB Bzimport 2026-07-16 17:01:47 UTC 
XML::Bare versions through 0.53 for Perl have an unbounded character lookahead.

The parserc_parse function attempts to check for multicharacter strings such as "<![CDATA" or element terminators such as ">" without checking that the offsets are within the buffer.

Truncated strings such as "<a/" can trigger an out-of-bounds read.