CVE-2026-24850

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Source
https://cve.org/CVERecord?id=CVE-2026-24850
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-24850.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-24850
Aliases
Published
2026-01-28T00:24:53Z
Modified
2026-10-21T02:56:27Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
ML-DSA Signature Verification Accepts Signatures with Repeated Hint Indices
Details

The ML-DSA crate is a Rust implementation of the Module-Lattice-Based Digital Signature Standard (ML-DSA). Starting in version 0.0.4 and prior to version 0.1.0-rc.4, the ML-DSA signature verification implementation in the RustCrypto ml-dsa crate incorrectly accepts signatures with repeated (duplicate) hint indices. According to the ML-DSA specification (FIPS 204 / RFC 9881), hint indices within each polynomial must be strictly increasing. The current implementation uses a non-strict monotonic check (<= instead of <), allowing duplicate indices. This is a regression bug. The original implementation was correct, but a commit in version 0.0.4 inadvertently changed the strict < comparison to <=, introducing the vulnerability. Version 0.1.0-rc.4 fixes the issue.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-347"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24850.json"
}
References

Affected packages

Git / github.com/rustcrypto/signatures

Affected ranges

Type
GIT
Repo
https://github.com/rustcrypto/signatures
Events
Introduced
ea7a000fa4ddac2ddc3eedca2666ac1959736712
Fixed
f5901031ac84167a28c8d5c47773e13298b417b9
Fixed
400961412be2e2ab787942cf30e0a9b66b37a54a
Fixed
b01c3b73dd08d0094e089aa234f78b6089ec1f38
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0.0.4"
                },
                {
                    "fixed":  "0.1.0-rc.4"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "400961412be2e2ab787942cf30e0a9b66b37a54a"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "range":  [
                {
                    "fixed":  "b01c3b73dd08d0094e089aa234f78b6089ec1f38"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

dsa-v0.*
dsa-v0.7.0-rc.10
dsa/v0.*
dsa/v0.7.0-rc.0
dsa/v0.7.0-rc.1
dsa/v0.7.0-rc.11
dsa/v0.7.0-rc.2
dsa/v0.7.0-rc.3
dsa/v0.7.0-rc.4
dsa/v0.7.0-rc.5
dsa/v0.7.0-rc.6
dsa/v0.7.0-rc.7
dsa/v0.7.0-rc.8
dsa/v0.7.0-rc.9
ecdsa/v0.*
ecdsa/v0.17.0-rc.0
ecdsa/v0.17.0-rc.1
ecdsa/v0.17.0-rc.10
ecdsa/v0.17.0-rc.11
ecdsa/v0.17.0-rc.12
ecdsa/v0.17.0-rc.13
ecdsa/v0.17.0-rc.14
ecdsa/v0.17.0-rc.2
ecdsa/v0.17.0-rc.3
ecdsa/v0.17.0-rc.4
ecdsa/v0.17.0-rc.5
ecdsa/v0.17.0-rc.6
ecdsa/v0.17.0-rc.7
ecdsa/v0.17.0-rc.8
ecdsa/v0.17.0-rc.9
ed25519/v3.*
ed25519/v3.0.0-pre.0
ed25519/v3.0.0-rc.0
ed25519/v3.0.0-rc.1
ed25519/v3.0.0-rc.2
ed448/0.*
ed448/0.5.0-rc.0
ed448/v0.*
ed448/v0.5.0-rc.1
ed448/v0.5.0-rc.2
lms-signature/v0.*
lms-signature/v0.1.0-rc.0
ml-dsa/v0.*
ml-dsa/v0.0.4
ml-dsa/v0.1.0-rc.0
ml-dsa/v0.1.0-rc.1
ml-dsa/v0.1.0-rc.2
ml-dsa/v0.1.0-rc.3
rfc6979/v0.*
rfc6979/v0.5.0-rc.0
rfc6979/v0.5.0-rc.1
rfc6979/v0.5.0-rc.2
rfc6979/v0.5.0-rc.3
slh-dsa/v0.*
slh-dsa/v0.0.3
slh-dsa/v0.2.0-rc.0
slh-dsa/v0.2.0-rc.1
slh-dsa/v0.2.0-rc.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-24850.json"