Snyk agent scan: AIOHTTP: Connector pool exhaustion via Max-Age overflow (CVE-2026-111065)
Description
A vulnerability in AIOHTTP allows an overflow in Max-Age processing that can prevent closing of connections, leading to temporary exhaustion of the connection pool until garbage collection intervenes. This affects versions from 0.4.3 up to but not including 0.6.9. The issue does not require user interaction or privileges to exploit and has a low impact on availability.
CVSS v4.0
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-111065 describes a flaw in AIOHTTP where an overflow in the Max-Age processing logic can cause connections to remain open instead of being closed as expected. This behavior can lead to exhaustion of the connection pool temporarily, as connections accumulate until garbage collection eventually frees them. The vulnerability affects AIOHTTP versions >=0.4.3 and <0.6.9. No known exploits are reported in the wild. The CVSS 4.0 vector indicates a network attack vector with low impact on availability and no required privileges or user interaction.
Potential Impact
An attacker can cause temporary exhaustion of the connection pool by exploiting the Max-Age overflow, which may degrade service availability until garbage collection resolves the open connections. There is no indication of privilege escalation, data disclosure, or persistent denial of service.
Mitigation Recommendations
A patch is available for this vulnerability. Users should upgrade AIOHTTP to version 0.6.9 or later to remediate the issue. No additional mitigation steps are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BREW-snyk-agent-scan-CVE-2026-111065
- Osv Schema Version
- 1.7.3
- Ecosystems
- ["Homebrew"]
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ada44e84d27ba8daa6a52bc
Added to database: 10/22/2026, 17:16:24 UTC
Last enriched: 10/22/2026, 17:29:16 UTC
Last updated: 10/23/2026, 03:15:13 UTC
Views: 5
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.