JLSEC-2026-749
- Source
- https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-749.md
- Import Source
- https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-749.json
- JSON Data
- https://api.osv.dev/v1/vulns/JLSEC-2026-749
- Upstream
- Published
- 2026-07-14T21:41:35.775Z
- Modified
- 2026-07-18T00:02:22.659950649Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
- Summary
- HMAC zero-length tag forgery in EVP_DigestVerifyFinal, where a zero-length tag could be accepted...
- Details
-
HMAC zero-length tag forgery in EVP_DigestVerifyFinal, where a zero-length tag could be accepted as valid during HMAC verification. In the OpenSSL-compatibility HMAC verify path the supplied signature length was only checked as not exceeding the MAC length, so a zero-length or otherwise truncated tag could pass verification. The fix requires the supplied tag length to exactly equal the MAC length and rejects a zero-length MAC, so a forged short or empty tag is no longer accepted.
- Database specific
{ "license": "CC-BY-4.0", "sources": [ { "modified": "2026-06-27T19:48:56.343Z", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-6331", "imported": "2026-07-17T22:35:45.543Z", "database_specific": { "status": "Analyzed" }, "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6331", "id": "CVE-2026-6331", "published": "2026-06-25T22:17:03.010Z" }, { "modified": "2026-06-27T21:30:29Z", "url": "https://api.github.com/advisories/GHSA-5hpf-pc4x-3jcf", "imported": "2026-07-17T22:35:45.732Z", "html_url": "https://github.com/advisories/GHSA-5hpf-pc4x-3jcf", "id": "GHSA-5hpf-pc4x-3jcf", "published": "2026-06-26T00:32:06Z" }, { "modified": "2026-06-26T13:53:06Z", "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-39565", "imported": "2026-07-17T22:35:55.617Z", "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-39565", "published": "2026-06-25T20:56:25Z", "id": "EUVD-2026-39565" } ] }- References