PT-2026-49593 · Pypi · Aiohttp

Denyspakizh-Tob · CVE-2026-54279 · 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 3.14.1

Description Host-only cookies saved using the CookieJar.save() function and subsequently restored via the CookieJar.load() function lose their host-only status. This can result in cookies loaded from disk being sent to subdomains that should have been disallowed.

Recommendations Update to version 3.14.1.

Exploit

Fix

Improper Initialization

Weakness Enumeration

CWE-665

Related Identifiers

CVE-2026-54279

ECHO-F4DA-5CDF-F6C3

GHSA-2FQR-MR3J-6WP8

OESA-2026-2838

OESA-2026-2839

OPENSUSE-SU-2026:11097-1

OPENSUSE-SU-2026:21372-1

PYSEC-2026-2112

SUSE-SU-2026:22819-1

SUSE-SU-2026:3207-1

SUSE-SU-2026:3208-1

Affected Products

Aiohttp

References · 72

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54279.json · Exploit
• https://github.com/aio-libs/aiohttp/commit/a329a7aacad5284f087af36103aff778746da0f2 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-54277 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-54279 · 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://nvd.nist.gov/vuln/detail/CVE-2026-54273 · Security Note
• https://osv.dev/vulnerability/ROOT-APP-PYPI-CVE-2026-54279 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-54279 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-2fqr-mr3j-6wp8 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-54279 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-54278 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-54280 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-54279 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-54274 · Security Note