Medium severity5.3NVD Advisory· Published Oct 19, 2026

CVE-2026-112273

Description

libtins through 4.6 contains a heap out-of-bounds read vulnerability in DNS::compose_name in src/dns.cpp that allows remote attackers to read past the packet buffer by sending a label ending exactly at the packet end. Attackers can deliver crafted DNS packets whose additional, answer, or authority records trigger a one-byte read when parsed, crashing applications on hardened allocators.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Mfontanini/libtinsllm-create
Range: <=4.6

Patches

Vulnerability mechanics

References

github.com/mfontanini/libtins/blob/v4.6/src/dns.cppnvd
hackmd.io/@haindpwn/libtins-dns-name-parsing-oob-readnvd
www.vulncheck.com/advisories/libtins-through-4.6-heap-out-of-bounds-read-via-dns-compose-namenvd

News mentions

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