JLSEC-2026-1333

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Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-1333.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1333.json
JSON Data
https://api.osv.dev/v1/vulns/JLSEC-2026-1333
Upstream
Published
2026-08-17T13:15:13Z
Modified
2026-08-17T13:30:03Z
Severity
  • 4.3 CVSS_V2 - AV:N/AC:M/Au:N/C:P/I:N/A:N (Source: NVD) CVSS Calculator
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N (Source: NVD) CVSS Calculator
Summary
[none]
Details

curl 7.61.0 through 7.76.1 suffers from exposure of data element to wrong session due to a mistake in the code for CURLOPT_SSL_CIPHER_LIST when libcurl is built to use the Schannel TLS library. The selected cipher set was stored in a single "static" variable in the library, which has the surprising side-effect that if an application sets up multiple concurrent transfers, the last one that sets the ciphers will accidentally control the set used by all transfers. In a worst-case scenario, this weakens transport security significantly.

Database specific 
{
    "license": "CC-BY-4.0",
    "sources": [
        {
            "database_specific": {
                "status": "Modified"
            },
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22897",
            "id": "CVE-2021-22897",
            "imported": "2026-08-16T08:05:12.414Z",
            "modified": "2026-06-17T03:37:58.520Z",
            "published": "2021-06-11T16:15:10.963Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-22897"
        }
    ]
}
References

Affected packages

Julia / LibCURL_jll

Package

Name
LibCURL_jll
Purl
pkg:julia/LibCURL_jll?uuid=deac9b47-8bc7-5906-a0fe-35ac56dc84c0

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
7.81.0+0

Database specific

source 
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1333.json"