CVE catalog

CVE-2026-54276

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, DigestAuthMiddleware can send an authentication response after following a cross-origin redirect. This

[CVE catalog]

Severity: Medium · CVSS 6.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published: Jun 15, 2026, 8:09:06 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.31% · Oct 25, 2026

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, DigestAuthMiddleware can send an authentication response after following a cross-origin redirect. This likely requires an open redirect vulnerability or similar on the target domain for an attacker to be able to execute. Further, the attacker is only receiving the digest, so should only be able to extract the user's credentials if the cryptography is weak or there is some kind of password reuse. This vulnerability is fixed in 3.14.1.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	python-aiohttp	sid	`3.14.3-1`	fixed
Debian	python-aiohttp	forky	`3.14.3-1`	fixed
Debian	python-aiohttp	trixie	`3.11.16-1+deb13u1`	not affected
Debian	python-aiohttp	trixie-security	`3.11.16-1+deb13u1`	not affected
Debian	python-aiohttp	bookworm	`3.8.4-1+deb12u1`	not affected
Debian	python-aiohttp	bookworm-security	`3.8.4-1+deb12u1`	not affected
Cpe	aiohttp	Not reported	`3.14.1`	fixed
PyPI	aiohttp	Not reported	`3.14.1`	fixed
Cpe	aiohttp	Not reported	`3.14.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	python-aiohttp	source	sid	`3.14.1-1`	not yet assigned	Not reported	Not reported
Debian	python-aiohttp	source	forky	`3.14.1-1`	not yet assigned	Not reported	Not reported
Debian	python-aiohttp	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	python-aiohttp	source	bookworm	`Not affected`	unimportant	Not reported	Not reported
Cpe	aiohttp	cpe	Not reported	`3.14.1`	Not reported	Not reported	Not reported
PyPI	aiohttp	PyPI	Not reported	`3.14.1`	Not reported	GHSA-HPJ7-WQ8M-9HGP	Not reported
Cpe	aiohttp	cpe	Not reported	`3.14.1`	Not reported	NVD-CVE-2026-54276	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[python3-aiohttp]Not affected
Source package: [python-aiohttp]
Details (4)
- 3.8.4-1+deb12u1 · amd64 · bookworm
  Not affected
  nvd · python-aiohttp · debian · bookworm
- 3.8.4-1+deb12u1 · arm64 · bookworm
  Not affected
  nvd · python-aiohttp · debian · bookworm
- 3.8.4-1+deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · python-aiohttp · debian · bookworm
- 3.8.4-1+deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · python-aiohttp · debian · bookworm
[python-aiohttp-doc]Not affected
Source package: [python-aiohttp]
Details (4)
- 3.8.4-1+deb12u1 · all · bookworm
  Not affected
  nvd · python-aiohttp · debian · bookworm
- 3.8.4-1+deb12u1 · all · bookworm
  Not affected
  nvd · python-aiohttp · debian · bookworm
- 3.8.4-1+deb12u1 · all · bookworm-security
  Not affected
  nvd · python-aiohttp · debian · bookworm
- 3.8.4-1+deb12u1 · all · bookworm-security
  Not affected
  nvd · python-aiohttp · debian · bookworm

Observed: Oct 27, 2026, 7:14:41 AM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]