Veille CVE
CVE-2026-49017
6.5 MoyenneDescription
In OpenStack Swift before 2.36.2 and 2.37.2, s3api middleware enters an infinite loop when processing a truncated aws-chunked PUT request body. The StreamingInput class repeatedly appends an empty buffer and re-reads, causing the proxy-server worker handling the request to become permanently unresponsive with increasing CPU and memory consumption. An authenticated attacker can systematically exhaust all proxy-server workers, resulting in denial of service. The defect was introduced in Swift 2.36.0.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 4.0 | 7.1 Élevée | cve@mitre.org | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| 3.1 | 6.5 Moyenne | nvd@nist.gov (NVD) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Faiblesses (CWE)
Références
- https://bugs.launchpad.net/bugs/2152205 Issue TrackingVendor Advisory
- https://review.opendev.org/c/openstack/swift/+/987957 Issue TrackingPatch
- https://review.opendev.org/c/openstack/swift/+/988093 Issue TrackingPatch
- http://www.openwall.com/lists/oss-security/2026/05/27/9 Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2026/06/02/6 Mailing ListPatchThird Party Advisory