CVE-2026-57074 XML::Bare versions through 0.53 for Perl have an unbounded character lookahead
An attacker can cause an out-of-bounds read in the XML::Bare Perl library by providing truncated input, potentially leading to crashes or data exposure.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-57074?
CVE-2026-57074 is a critical memory corruption vulnerability in CODECHILD XML::Bare, published on 16 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-125
Which versions are affected by CVE-2026-57074?
How do I fix CVE-2026-57074?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-57074 being exploited?
There is no known exploitation of CVE-2026-57074 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-57074, GHSA-xm8x-vw7j-573w, UBUNTU-CVE-2026-57074.