CVE-2026-113351: falha de alta gravidade em libexpat
libexpat 2.7.2 through 2.9.0 Denial of Service via XML_ParserReset
Publicada em
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.2epss 0.5%
probabilidade de exploração
0.5%top 59% das CVEs
exploração observada
nãonenhuma fonte reporta
libexpat 2.7.2 through 2.9.0 contains a denial of service vulnerability because XML_ParserReset zeroes the direct byte count but never offsets tracked heap allocations. Attackers can submit a large XML document so later documents on the same reset parser fail with XML_ERROR_NO_MEMORY until it is recreated.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Produtos afetados
libexpat · libexpatCVEs relacionadas — libexpat
No mesmo produto, das mais perigosas para as menos.
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Referências
https://github.com/libexpat/libexpathttps://github.com/libexpat/libexpat/blob/a76b1174c1ea52abb639a4c69d52b630a8a106a2/expat/lib/xmlparse.c#L1560https://github.com/libexpat/libexpat/blob/a76b1174c1ea52abb639a4c69d52b630a8a106a2/expat/lib/xmlparse.c#L860-L884https://github.com/libexpat/libexpat/pull/1431https://www.vulncheck.com/advisories/libexpat-2.7.2-through-2.9.0-denial-of-service-via-xml-parserreset