CVE-2025-69223 | AIOHTTP's HTTP Parser auto_decompress feature is vulnerable to zip bomb

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a zip bomb to be used to execute a DoS against the AIOHTTP server. An attacker may be able to send a compressed request that when decompressed by AIOHTTP could exhaust the host's memory. This issue is fixed in version 3.13.3.

Published: 2026-01-05 Last update: 2026-01-14 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-69223 is rated Low Risk (35.8/100): CVSS High severity, with low exploitation likelihood (EPSS 0.05%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-69223

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-11 0.04% 0.05% +0.01%
2 2026-01-06 — 0.04% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-69223

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2025-69223

GitHub Security Advisory for CVE-2025-69223

GHSA-6mq8-rvhq-8wgg · Severity: high · Ecosystem: pip — AIOHTTP's HTTP Parser auto_decompress feature is vulnerable to zip bomb

OS Trackers for CVE-2025-69223

vendor priority summary link
alpine — CVE-2025-69223: 1 source package rows (py3-aiohttp); 2 state rows across 2 repos (3.23-community, edge-community); fixed 2, open 0. https://security.alpinelinux.org/vuln/CVE-2025-69223
debian not yet assigned CVE-2025-69223 not yet assigned priority: Debian including 1 source packages (python-aiohttp), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 3, open 2. https://security-tracker.debian.org/tracker/CVE-2025-69223
redhat high — https://access.redhat.com/security/cve/CVE-2025-69223
suse high CVE-2025-69223 severity important: SUSE including 15 source package names (2.1.3-6.6:openssh-9.6p1-3.1, 2.1.3-6.6:openssh-clients-9.6p1-3.1, …), 66 product×package rows across 30 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Image SLE-Micro, … (30 product lines)): Fixed 64, First Fixed 2. https://www.suse.com/security/cve/CVE-2025-69223/
ubuntu medium CVE-2025-69223 medium priority: Ubuntu including 1 source packages (python-aiohttp), 8 status rows across 8 suites (bionic, focal, jammy, noble, plucky, questing, upstream, xenial): needed 5, released 2, ignored 1. https://ubuntu.com/security/CVE-2025-69223

Affected software / configurations for CVE-2025-69223

Vendor Product Version Raw CPE
aiohttp aiohttp < 3.13.3 cpe:2.3:a:aiohttp:aiohttp:*:*:*:*:*:*:*:*

References for CVE-2025-69223

cvelogic Threat Intelligence