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GHSA-434v-x5qv-pmh6 GHSA-q29p-9pfr-j652 GHSA-xrf2-5r3p-5wgj
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‎advisories/github-reviewed/2026/03/GHSA-434v-x5qv-pmh6/GHSA-434v-x5qv-pmh6.json‎

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{
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"schema_version": "1.4.0",
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"id": "GHSA-434v-x5qv-pmh6",
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"modified": "2026-03-26T17:58:55Z",
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"published": "2026-03-26T17:58:55Z",
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"aliases": [],
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"summary": "libcrux has All-Zero Key Generation Upon Catastrophic RNG Failure",
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"details": "The libcrux-ed25519 key generation samples Ed25519 secret keys from a provided CSPRNG in a loop for up to 100 attempts until a non-zero key is found. If a non-zero key could not be sampled within 100 attempts the key generation function would silently continue with an all-zero buffer as the secret key.\n\n## Impact\nThis bug only occurs in the event of a catastrophic failure of the CSPRNG, but would allow anyone to forge signatures under the resulting static signing key.\n\n## Mitigation\nInstead of silently continuing with an all-zero signing key, starting from version `0.0.7` key generation will error in the case of 100 failed attempts at sampling a valid key.",
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"severity": [
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{
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"type": "CVSS_V4",
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"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"
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}
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],
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"affected": [
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{
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"package": {
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"ecosystem": "crates.io",
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"name": "libcrux-ed25519"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "0"
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},
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{
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"fixed": "0.0.7"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"type": "WEB",
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"url": "https://github.com/cryspen/libcrux/pull/1349"
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},
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{
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"type": "PACKAGE",
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"url": "https://github.com/cryspen/libcrux"
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},
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{
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"type": "WEB",
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"url": "https://rustsec.org/advisories/RUSTSEC-2026-0075.html"
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}
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],
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"database_specific": {
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"cwe_ids": [
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"CWE-1240",
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"CWE-331",
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"CWE-392"
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],
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"severity": "HIGH",
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"github_reviewed": true,
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"github_reviewed_at": "2026-03-26T17:58:55Z",
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"nvd_published_at": null
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}
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}

‎advisories/github-reviewed/2026/03/GHSA-q29p-9pfr-j652/GHSA-q29p-9pfr-j652.json‎

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{
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"schema_version": "1.4.0",
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"id": "GHSA-q29p-9pfr-j652",
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"modified": "2026-03-26T17:59:34Z",
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"published": "2026-03-26T17:59:34Z",
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"aliases": [],
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"summary": "libcrux-sha3: Incorrect output from SHAKE squeeze functions",
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"details": "The incremental squeeze functions in the portable SHAKE XOF API, when attempting to squeeze more than `RATE` (168 for SHAKE128, 136 for SHAKE256) bytes, performed an additional permutation of the state before producing the first output block, thus discarding the first block of `RATE` bytes of valid XOF output.\n\n## Impact\nThis bug impacts users that rely on this XOF API to squeeze more than `RATE` bytes. It does not impact the use of libcrux-sha3 in libcrux-ml-kem or libcrux-ml-dsa.\n\n## Mitigation\nStarting from version `0.0.8` the squeeze functions correctly output all blocks including the first block.",
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"severity": [
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{
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"type": "CVSS_V4",
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"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"
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}
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],
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"affected": [
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{
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"package": {
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"ecosystem": "crates.io",
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"name": "libcrux-sha3"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "0"
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},
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{
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"fixed": "0.0.8"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"type": "WEB",
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"url": "https://github.com/cryspen/libcrux/pull/1352"
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},
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{
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"type": "PACKAGE",
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"url": "https://github.com/cryspen/libcrux"
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},
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{
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"type": "WEB",
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"url": "https://rustsec.org/advisories/RUSTSEC-2026-0074.html"
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}
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],
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"database_specific": {
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"cwe_ids": [
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"CWE-682"
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],
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"severity": "HIGH",
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"github_reviewed": true,
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"github_reviewed_at": "2026-03-26T17:59:34Z",
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"nvd_published_at": null
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}
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}

‎advisories/github-reviewed/2026/03/GHSA-xrf2-5r3p-5wgj/GHSA-xrf2-5r3p-5wgj.json‎

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{
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"schema_version": "1.4.0",
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"id": "GHSA-xrf2-5r3p-5wgj",
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"modified": "2026-03-26T17:58:16Z",
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"published": "2026-03-26T17:58:16Z",
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"aliases": [],
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"summary": "libcrux: Panic in Signature Hint Decoding During Verification",
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"details": "During ML-DSA verification the serialized hint values are decoded as specified in algorithm 22 `HintBitUnpack` of [FIPS 204, subsection 7.1](https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.204.pdf#%5B%7B%22num%22%3A120%2C%22gen%22%3A0%7D%2C%7B%22name%22%3A%22FitH%22%7D%2C657%5D). The algorithm requires that the cumulative hint counters per row of the hint vector are strictly increasing and below a maximum value which depends on the choice of ML-DSA parameter set (line 4).\n\nIn libcrux-ml-dsa, hint decoding did not check the boundedness of the cumulative hint counter of the last row of the hint vector.\n\n## Impact\nA manipulated invalid hint can cause an out-of-bounds memory access since the hint decoding logic may attempt to read outside the bounds of the serialized signature, causing a runtime panic.\n\n## Mitigation\nStarting from version `0.0.8`, hint decoding will check the cumulative hint counter of the last row as well.",
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"severity": [
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{
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"type": "CVSS_V4",
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"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
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}
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],
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"affected": [
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{
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"package": {
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"ecosystem": "crates.io",
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"name": "libcrux-ml-dsa"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "0"
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},
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{
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"fixed": "0.0.8"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"type": "WEB",
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"url": "https://github.com/cryspen/libcrux/pull/1348"
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},
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{
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"type": "PACKAGE",
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"url": "https://github.com/cryspen/libcrux"
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},
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{
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"type": "WEB",
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"url": "https://rustsec.org/advisories/RUSTSEC-2026-0076.html"
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}
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],
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"database_specific": {
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"cwe_ids": [
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"CWE-125",
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"CWE-1285"
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],
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"severity": "HIGH",
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"github_reviewed": true,
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"github_reviewed_at": "2026-03-26T17:58:16Z",
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"nvd_published_at": null
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}
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}

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