CVE-2026-71190

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Source
https://cve.org/CVERecord?id=CVE-2026-71190
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71190.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-71190
Downstream
Published
2026-08-05T04:54:03.020Z
Modified
2026-08-25T04:03:36.707097004Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
[none]
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71190.json",
    "cna_assigner": "mitre",
    "cwe_ids": [
        "CWE-1333"
    ]
}
References

Affected packages

Git / opendev.org/openstack/swift

Affected ranges

Type
GIT
Repo
https://opendev.org/openstack/swift
Events
Introduced
4bd9e4584d31eb37c7e30e555daeb6b90703ee3a
Fixed
fc875f93e82edf98805d0eead3e3c961673c3ef8
Introduced
82cb5a5d78b91c6af258cd8f06d30f69be90fa18
Fixed
deaa3e4691bb19224f5ef57e7fbcd08b7eff5277
Introduced
555026d200337b39c97eb9dafd26901ff40c7a1d
Fixed
5104042f12efcaf90c28b656a378da8959004826
Introduced
9f5881d5143fd06a328bde2713cd9c61df579289
Last affected
9f5881d5143fd06a328bde2713cd9c61df579289
Database specific
Show details 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "1.9.1"
        },
        {
            "fixed": "2.35.4"
        },
        {
            "introduced": "2.36.0"
        },
        {
            "fixed": "2.36.3"
        },
        {
            "introduced": "2.37.0"
        },
        {
            "fixed": "2.37.3"
        },
        {
            "introduced": "2.38.0"
        },
        {
            "last_affected": "2.38.0"
        }
    ]
}

Affected versions

2.*
2.36.0
2.36.1
2.36.2
2.37.0
2.37.1
2.37.2
2.38.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71190.json"