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CVE-2026-43077 is a receive-buffer size validation flaw in the Linux kernel's algif_aead component, which implements AF_ALG authenticated-encryption operations. During decryption, the minimum receive-buffer size check omits the authentication tag size, resulting in an insufficient minimum-length requirement. The correction adds the required extra length to the check. The precise runtime consequences of the validation error are currently not available.
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71 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel crypto algif_aead vulnerability caused by a minimum receive-buffer size check that omits the authentication tag length during decryption. The reported CVSS v3 score is 5.5, indicating a local, low-privilege attack with high availability impact and no confidentiality or integrity impact.
A vulnerability addressed by the referenced CentOS/TuxCare security advisory.
Vulnerability referenced by the advisory; no individual description is provided.
A Linux kernel algif_aead cryptographic interface vulnerability involving an insufficient minimum receive-size check for decryption.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.