CVE-2026-0865

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Source
https://cve.org/CVERecord?id=CVE-2026-0865
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-0865.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-0865
Aliases
Downstream
Related
Published
2026-01-20T21:26:15.274Z
Modified
2026-06-15T12:23:21.309441777Z
Severity
  • 5.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
wsgiref.headers.Headers allows header newline injection
Details

User-controlled header names and values containing newlines can allow injecting HTTP headers.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/0xxx/CVE-2026-0865.json",
    "cna_assigner": "PSF",
    "cwe_ids": [
        "CWE-74"
    ]
}
References

Affected packages

Git / github.com/python/cpython

Affected ranges

Type
GIT
Repo
https://github.com/python/cpython
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Introduced
deaf509e8fc6e0363bd6f26d52ad42f976ec42f2
Introduced
0fb18b02c8ad56299d6a2910be0bab8ad601ef24
Introduced
60403a5409ff2c3f3b07dd2ca91a7a3e096839c7
Introduced
ebf955df7a89ed0c7968f79faec1de49f61ed7cb
Introduced
f31a89bb901067dd105b00cfa90523cf7ffdbbdd
Fixed
842e987df856a5d4db37933c62a3456930a19092
Fixed
2340a037f7450e70fccfe411e6531afb4d57a312
Fixed
3bb231a6a5dc02b95658877318bf61501a7209e9
Fixed
1cbe481834751b0125e006042ffbd8cd5eaec8a8
Fixed
323c59a5e348347be2ce2b7ea55fcb30bf68b2d3
Fixed
15b216f30d0445469ec31bc7509fcc55a216ef7c
Fixed
22e4d55285cee52bc4dbe061324e5f30bd4dee58
Fixed
23e3c0ae867cca0130e441e776c9955b9027c510
Fixed
286e3ac39984fe85a17f4ab39c64d382137aae5f
Fixed
2f840249550e082dc351743f474ba56da10478d2
Fixed
4802b96a2cde58570c24c13ef3289490980961c5
Fixed
66da7bf6fe7b81e3ecc9c0a25bd47d4616c8d1a6
Fixed
83ecd18779f286d872f68bfce175651e407d9fff
Fixed
8bb044d29310bb05d15086cdaa8bf64867d61a97
Fixed
bfba660085767f8c2d582134e9d511a85eda04cf
Fixed
c592227ffb48679af9845a45dbb0875d975bb219
Fixed
e4846a93ac07a8ae9aa18203af0dd13d6e7a6995
Fixed
f7fceed79ca1bceae8dbe5ba5bc8928564da7211
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.10.20"
        },
        {
            "introduced": "3.11.0"
        },
        {
            "fixed": "3.11.15"
        },
        {
            "introduced": "3.12.0"
        },
        {
            "fixed": "3.12.13"
        },
        {
            "introduced": "3.13.0"
        },
        {
            "fixed": "3.13.12"
        },
        {
            "introduced": "3.14.0"
        },
        {
            "fixed": "3.14.3"
        },
        {
            "introduced": "3.15.0a1"
        },
        {
            "fixed": "3.15.0a6"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.9.8
v0.9.9
v1.*
v1.0.1
v1.0.2
v1.1
v1.1.1
v1.2
v1.2b1
v1.2b2
v1.2b3
v1.2b4
v1.3
v1.3b1
v1.4
v1.4b1
v1.4b2
v1.4b3
v1.5
v1.5.1
v1.5.2
v1.5.2a1
v1.5.2a2
v1.5.2b1
v1.5.2b2
v1.5.2c1
v1.5a1
v1.5a2
v1.5a3
v1.5a4
v1.5b1
v1.5b2
v1.6a1
v1.6a2
v2.*
v2.0
v2.0b1
v2.0b2
v2.0c1
v2.1
v2.1a1
v2.1a2
v2.1b1
v2.1b2
v2.1c1
v2.1c2
v2.2a3
v2.3c1
v2.3c2
v2.4
v2.4a1
v2.4a2
v2.4a3
v2.4b1
v2.4b2
v2.4c1
v3.*
v3.0a1
v3.0a2
v3.0a3
v3.0a4
v3.0a5
v3.0b1
v3.0b2
v3.0b3
v3.0rc1
v3.0rc2
v3.0rc3
v3.1
v3.10.0a1
v3.10.0a7
v3.10.0b1
v3.10.0b2
v3.10.0b3
v3.10.0b4
v3.10.0rc1
v3.10.0rc2
v3.10.1
v3.10.10
v3.10.11
v3.10.12
v3.10.13
v3.10.14
v3.10.15
v3.10.16
v3.10.17
v3.10.18
v3.10.19
v3.10.2
v3.10.3
v3.10.4
v3.10.5
v3.10.6
v3.10.7
v3.10.8
v3.10.9
v3.11.0a3
v3.11.0a4
v3.11.0a5
v3.11.0a6
v3.11.0a7
v3.11.0b1
v3.11.0b2
v3.11.0b3
v3.11.0b4
v3.11.0b5
v3.11.0rc1
v3.11.0rc2
v3.11.1
v3.11.10
v3.11.11
v3.11.12
v3.11.13
v3.11.14
v3.11.2
v3.11.3
v3.11.4
v3.11.5
v3.11.6
v3.11.7
v3.11.8
v3.11.9
v3.12.0
v3.12.0a1
v3.12.0a2
v3.12.0a3
v3.12.0a4
v3.12.0a5
v3.12.0a6
v3.12.0a7
v3.12.0b1
v3.12.1
v3.12.10
v3.12.11
v3.12.12
v3.12.2
v3.12.3
v3.12.4
v3.12.5
v3.12.6
v3.12.7
v3.12.8
v3.12.9
v3.13.0
v3.13.0a1
v3.13.0a2
v3.13.0a3
v3.13.0a4
v3.13.0a5
v3.13.0a6
v3.13.0b1
v3.13.1
v3.13.10
v3.13.11
v3.13.12
v3.13.2
v3.13.3
v3.13.4
v3.13.5
v3.13.6
v3.13.7
v3.13.8
v3.14.0
v3.14.0a1
v3.14.0a2
v3.14.0a3
v3.14.0a4
v3.14.0a5
v3.14.0a6
v3.14.0a7
v3.14.0b1
v3.14.1
v3.14.2
v3.14.3
v3.15.0a1
v3.15.0a2
v3.15.0a3
v3.15.0a4
v3.15.0a5
v3.15.0a6
v3.1a1
v3.1a2
v3.1b1
v3.1rc1
v3.1rc2
v3.2a1
v3.2a2
v3.2a3
v3.2a4
v3.2b1
v3.2b2
v3.2rc1
v3.2rc2
v3.2rc3
v3.3.0a2
v3.3.0a3
v3.3.0a4
v3.3.0b1
v3.3.0b2
v3.3.0rc1
v3.3.0rc2
v3.3.0rc3
v3.4.0a1
v3.4.0a2
v3.4.0a3
v3.4.0a4
v3.4.0b1
v3.4.0b2
v3.4.0b3
v3.5.0a1
v3.5.0a2
v3.5.0a3
v3.5.0a4
v3.5.0b1
v3.6.0a3
v3.6.0b1
v3.7.0a2
v3.9.0a2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-0865.json"