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Vulnerability DatabaseCVE-2026-42784
CVE-2026-42784:
Linux Debian vulnerability analysis and mitigation
A flaw was found in sequoia-openpgp. The library incorrectly infers key flags for older certificates when a key flags subpacket is missing, leading to a discrepancy in how key capabilities are viewed. This key flag confusion allows an attacker to bypass the back-signature check. Consequently, an attacker can illegitimately bind an arbitrary subkey to their own certificate and forge signatures, completely compromising cryptographic integrity.
Linux Distribution fix status
Fix availability across major Linux distributions and their releases.
bookworm
rust-sequoia-openpgp
sid
rust-sequoia-openpgp: 2.2.0-2
trixie
rust-sequoia-openpgp
devel
rust-sequoia-openpgp
jammy
rust-sequoia-openpgp
jammy (esm-apps)
rust-sequoia-openpgp
noble
rust-sequoia-openpgp
noble (esm-apps)
rust-sequoia-openpgp
resolute
rust-sequoia-openpgp
resolute (esm-apps)
rust-sequoia-openpgp
Source: NVD
Related Linux Debian vulnerabilities:
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