AZL-86751
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-86751.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-86751
- Upstream
- Published
- 2026-05-13T21:16:46Z
- Modified
- 2026-08-30T05:26:50Z
- Summary
- CVE-2026-42304 affecting package python-twisted for versions less than 22.10.0-5
- Details
-
Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 26.4.0rc2, the twisted.names module is vulnerable to a Denial of Service (DoS) attack via resource exhaustion during DNS name decompression. A remote, unauthenticated attacker can exploit this by sending a crafted TCP DNS packet containing deeply chained compression pointers. This flaw bypasses previous loop-prevention logic, causing the single-threaded Twisted reactor to hang while processing millions of recursive lookups, effectively freezing the server. This vulnerability is fixed in 26.4.0rc2.
- References