CVE detail
CVE-2026-71190
In OpenStack Swift through 2.38.0, the proxy server Accept header parser contains a regular expression vulnerable to catastrophic backtracking (ReDoS). The "qdtext" pattern (?:[^"]|\\.)* allows an unauthenticated remote attacker to send a crafted Accept header that causes exponential CPU consumption in the proxy worker. A payload of 32 backslash-character pairs exceeds 30 seconds of CPU time. No authentication is required. Repeated requests can exhaust all proxy worker threads, resulting in a complete denial of service.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 16.1 · diversity 16.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 4
- within the 30d window
- Peak daily
- 4
- highest bucket
Evidence
Source links by recency
4 source links · newest first
- http://www.openwall.com/lists/oss-security/2026/08/05/19www.openwall.com
No excerpt available.
Exploitwww.openwall.comAug 5, 2026, 6:16 AM - https://security.openstack.org/ossa/OSSA-2026-031.htmlsecurity.openstack.org
No excerpt available.
Vendor Advisorysecurity.openstack.orgAug 5, 2026, 6:16 AM No excerpt available.
referenceopenwall.comAug 5, 2026, 6:16 AM- https://launchpad.net/bugs/2158771launchpad.net
No excerpt available.
Exploitlaunchpad.netAug 5, 2026, 6:16 AM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
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