PT-2026-49564 · Pypi · Aiohttp

Tonghuaroot · CVE-2026-50269 · Published 2026-06-15 · Updated 2026-07-23

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions AIOHTTP versions prior to 3.14.0

Description Attacker-controlled input included in multipart/payload headers can be used to modify a request to inject additional headers or change the request contents. This occurs when an application passes user-controlled strings into the MultipartWriter.append(headers=...) function or the Payload.headers variable.

Recommendations Update to version 3.14.0. Sanitize user input passed into multipart/payload headers.

Exploit

Fix

Weakness Enumeration

CWE-93

CWE-113

Related Identifiers

CVE-2026-50269

ECHO-B9F2-2C14-64AB

GHSA-M6QW-4CW2-HM4M

OPENSUSE-SU-2026:11097-1

OPENSUSE-SU-2026:21372-1

PYSEC-2026-2106

SUSE-SU-2026:22819-1

SUSE-SU-2026:3207-1

SUSE-SU-2026:3208-1

Affected Products

Aiohttp

References · 61

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50269.json · Exploit
• https://github.com/aio-libs/aiohttp/commit/bf88077ebb14f4c29924b8e8904cba20c55c28b8 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-50269 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:22819-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:11097-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-50269 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-m6qw-4cw2-hm4m · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-50269 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:3208-1 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-APP-PYPI-CVE-2026-50269 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-50269 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-50269 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-50269 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-50269 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:21372-1 · Vendor Advisory