GHSA-jg22-mg44-37j8 — medium GitHub Advisory (CVE-2026-34993) in pip/aiohttp

Description

Using CookieJar.load() with untrusted input may allow arbitrary code execution.

Most applications using this function will be doing so with the user's own data, so this is unlikely to affect many applications.

If an application does allow attacker controlled files to be loaded, a workaround on older releases would be to sanitise the files before loading.

Patch: https://github.com/aio-libs/aiohttp/commit/dcf40f30637e8752c76781cf6703b5a236749a00

Score	Percentile
0.06%	17.58%

Base score	Version	Severity	Vector
6.4	3.1	—	`CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:H) Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work. Privileges required (PR:H) They need powerful rights—admin, root, or similar—before this pays off. User interaction (UI:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. Scope (S:C) Breaking this can reach past the original component and bite other resources—bigger blast radius. Confidentiality (C:L) Some sensitive info could get out, but not a total data dump. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:L) Might cause slowdowns, glitches, or partial disruption—not a full brick.

Type	Value
GHSA	GHSA-jg22-mg44-37j8 ↗
CVE	CVE-2026-34993 ↗

CWE id	Name
CWE-502	Deserialization of Untrusted Data

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem	Package	Vulnerable range	First patched	Vulnerable functions
pip	aiohttp	< 3.14.0	3.14.0	—