CVE-2026-112274

CVSS 6.3 (medium) · published 2026-10-19

libtins through 4.6 contains an out-of-bounds read vulnerability in DNS::soa_record::init that allows remote attackers to read past buffer bounds by supplying SOA data lacking NUL terminators. Attackers can feed raw SOA RDATA without a zero byte to applications using the buffer constructor, causing strlen to overrun the heap buffer and possibly crash.

Weakness: CWE-125

Source: NVD CVE-2026-112274

References

• https://github.com/mfontanini/libtins
• https://github.com/mfontanini/libtins/blob/v4.6/src/dns.cpp#L698-L710
• https://hackmd.io/@haindpwn/libtins-dns-name-parsing-oob-read
• https://www.vulncheck.com/advisories/libtins-through-4.6-out-of-bounds-read-via-dns-soa-record-init
• https://hackmd.io/@haindpwn/libtins-dns-name-parsing-oob-read

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