{"id":"CVE-2026-43077","state":"PUBLISHED","title":"crypto: algif_aead - Fix minimum RX size check for decryption","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: algif_aead - Fix minimum RX size check for decryption\n\nThe check for the minimum receive buffer size did not take the\ntag size into account during decryption.  Fix this by adding the\nrequired extra length.","publishedAt":"2026-05-06T07:40:14.409Z","updatedAt":"2026-05-11T22:17:16.763Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"74a66fdb5282d89e348b00c42cfca3a936946d94","versionType":"git"},{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"fd427dd84f224309afbcc2cb67c7bb770a01265c","versionType":"git"},{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"1c76b5675119f694458293a2a81f40731c69bd32","versionType":"git"},{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"e86ab1e5661386a874fbb8551f0c04b8e9f8ad22","versionType":"git"},{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"af2fa2fbbced26129813274b8b3f7705f280e174","versionType":"git"},{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"78cea133daf721698876e56135049a96d39d610a","versionType":"git"},{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"3afdc15d6173614d7d834517d9b65e7aa5a08548","versionType":"git"},{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"3d14bd48e3a77091cbce637a12c2ae31b4a1687c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["crypto/algif_aead.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.14","versionType":"semver"},{"version":"5.10.254","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.204","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.170","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.136","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.83","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.24","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.14","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["crypto/algif_aead.c"]}],"references":["https://git.kernel.org/stable/c/74a66fdb5282d89e348b00c42cfca3a936946d94","https://git.kernel.org/stable/c/fd427dd84f224309afbcc2cb67c7bb770a01265c","https://git.kernel.org/stable/c/1c76b5675119f694458293a2a81f40731c69bd32","https://git.kernel.org/stable/c/e86ab1e5661386a874fbb8551f0c04b8e9f8ad22","https://git.kernel.org/stable/c/af2fa2fbbced26129813274b8b3f7705f280e174","https://git.kernel.org/stable/c/78cea133daf721698876e56135049a96d39d610a","https://git.kernel.org/stable/c/3afdc15d6173614d7d834517d9b65e7aa5a08548","https://git.kernel.org/stable/c/3d14bd48e3a77091cbce637a12c2ae31b4a1687c"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43077.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43077","state":"PUBLISHED","datePublished":"2026-05-06T07:40:14.409Z","dateUpdated":"2026-05-11T22:17:16.763Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:55.983Z"},"containers":{"cna":{"title":"crypto: algif_aead - Fix minimum RX size check for decryption","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: algif_aead - Fix minimum RX size check for decryption\n\nThe check for the minimum receive buffer size did not take the\ntag size into account during decryption.  Fix this by adding the\nrequired extra length."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"74a66fdb5282d89e348b00c42cfca3a936946d94","versionType":"git"},{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"fd427dd84f224309afbcc2cb67c7bb770a01265c","versionType":"git"},{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"1c76b5675119f694458293a2a81f40731c69bd32","versionType":"git"},{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"e86ab1e5661386a874fbb8551f0c04b8e9f8ad22","versionType":"git"},{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"af2fa2fbbced26129813274b8b3f7705f280e174","versionType":"git"},{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"78cea133daf721698876e56135049a96d39d610a","versionType":"git"},{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"3afdc15d6173614d7d834517d9b65e7aa5a08548","versionType":"git"},{"version":"d887c52d6ae43aeebd249b5f2f1333e60236aa60","status":"affected","lessThan":"3d14bd48e3a77091cbce637a12c2ae31b4a1687c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["crypto/algif_aead.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.14","versionType":"semver"},{"version":"5.10.254","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.204","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.170","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.136","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.83","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.24","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.14","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["crypto/algif_aead.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/74a66fdb5282d89e348b00c42cfca3a936946d94"},{"url":"https://git.kernel.org/stable/c/fd427dd84f224309afbcc2cb67c7bb770a01265c"},{"url":"https://git.kernel.org/stable/c/1c76b5675119f694458293a2a81f40731c69bd32"},{"url":"https://git.kernel.org/stable/c/e86ab1e5661386a874fbb8551f0c04b8e9f8ad22"},{"url":"https://git.kernel.org/stable/c/af2fa2fbbced26129813274b8b3f7705f280e174"},{"url":"https://git.kernel.org/stable/c/78cea133daf721698876e56135049a96d39d610a"},{"url":"https://git.kernel.org/stable/c/3afdc15d6173614d7d834517d9b65e7aa5a08548"},{"url":"https://git.kernel.org/stable/c/3d14bd48e3a77091cbce637a12c2ae31b4a1687c"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:17:16.763Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"5.10.254"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"5.15.204"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.1.170"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.6.136"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.12.83"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.18.24"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.19.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}