CVE-2026-4601
28Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 9.4epss 0.3%
probabilidade de exploração
0.3%top 78% das CVEs
exploração observada
nãonenhuma fonte reporta
Versions of the package jsrsasign before 11.1.1 are vulnerable to Missing Cryptographic Step via the KJUR.crypto.DSA.signWithMessageHash process in the DSA signing implementation. An attacker can recover the private key by forcing r or s to be zero, so the library emits an invalid signature without retrying, and then solves for x from the resulting signature.
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:H/SA:N/E:P
Referências
https://access.redhat.com/errata/RHSA-2026:19375https://access.redhat.com/errata/RHSA-2026:19409https://access.redhat.com/errata/RHSA-2026:19410https://access.redhat.com/errata/RHSA-2026:6568https://access.redhat.com/errata/RHSA-2026:6720https://access.redhat.com/errata/RHSA-2026:6912https://access.redhat.com/errata/RHSA-2026:6926https://access.redhat.com/security/cve/CVE-2026-4601https://bugzilla.redhat.com/show_bug.cgi?id=2450209https://gist.github.com/Kr0emer/93789fe6efe5519db9692d4ad1dad586https://github.com/kjur/jsrsasign/commit/0710e392ec35de697ce11e4219c988ba2b5fe0ebhttps://github.com/kjur/jsrsasign/pull/645