CVE-2026-1502

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Source
https://cve.org/CVERecord?id=CVE-2026-1502
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1502.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-1502
Aliases
Downstream
Related
Published
2026-04-10T17:54:44.121Z
Modified
2026-08-14T03:51:42.528873164Z
Severity
  • 5.7 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
HTTP client proxy tunnel headers not validated for CR/LF
Details

CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1502.json",
    "cna_assigner": "PSF",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "fixed": "3.10.21"
                },
                {
                    "introduced": "3.11.0"
                },
                {
                    "fixed": "3.11.16"
                },
                {
                    "introduced": "3.12.0"
                },
                {
                    "fixed": "3.12.14"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/python/cpython

Affected ranges

Type
GIT
Repo
https://github.com/python/cpython
Events
Introduced
60403a5409ff2c3f3b07dd2ca91a7a3e096839c7
Introduced
b092705907c758d4f9742028652c9802f9f03dd3
Introduced
f31a89bb901067dd105b00cfa90523cf7ffdbbdd
Fixed
fd17997c3866d61e0e7bd8201b1d8f35b40a40bd
Fixed
a68a9190498a16ab1a5c9012ef5a70df81a5b328
Fixed
f31a89bb901067dd105b00cfa90523cf7ffdbbdd
Fixed
05ed7ce7ae9e17c23a04085b2539fe6d6d3cef69
Fixed
56b7100b04e44ea27989242b176beb8f016b2c53
Fixed
58703ec1bdd1eb075e8b01a0c427683ce594dd3e
Fixed
9e071c9b28c17f347f81b388a003d4eeb3c7a8dd
Fixed
b1cf9016335cb637c5a425032e8274a224f4b2ed
Fixed
c00c386faa579ad71196d33408644478488e43ec
Database specific
Show details 
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "3.13.0"
        },
        {
            "fixed": "3.13.14"
        },
        {
            "introduced": "3.14.0a1"
        },
        {
            "fixed": "3.14.5rc1"
        },
        {
            "introduced": "3.15.0a1"
        },
        {
            "fixed": "3.15.0b1"
        }
    ]
}

Affected versions

v3.*
v3.13.0
v3.13.1
v3.13.10
v3.13.11
v3.13.12
v3.13.13
v3.13.2
v3.13.3
v3.13.4
v3.13.5
v3.13.6
v3.13.7
v3.13.8
v3.14.0
v3.14.0b1
v3.14.0b2
v3.14.0b3
v3.14.0b4
v3.14.0rc1
v3.14.0rc2
v3.14.0rc3
v3.14.1
v3.14.2
v3.14.3
v3.14.4
v3.15.0a1
v3.15.0a2
v3.15.0a3
v3.15.0a4
v3.15.0a5
v3.15.0a6
v3.15.0a7
v3.15.0a8

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1502.json"