GHSA-g7jq-j257-rww2

Source

https://github.com/advisories/GHSA-g7jq-j257-rww2

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-g7jq-j257-rww2/GHSA-g7jq-j257-rww2.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-g7jq-j257-rww2

Aliases

Published

2026-05-27T03:30:31Z

Modified

2026-07-13T16:43:07Z

Severity

7.1 (High) CVSS_V4 - 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 CVSS Calculator

Summary

OpenStack Swift: s3api middleware enters an infinite loop when processing a truncated aws-chunked PUT request body

Details

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.

Database specific

{
    "cwe_ids":  [
        "CWE-835"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-07-01T18:04:11Z",
    "nvd_published_at":  "2026-05-27T02:16:34Z",
    "severity":  "HIGH"
}

References

Affected packages

PyPI / swift

Package

Name: swift; View open source insights on deps.dev
Purl: pkg:pypi/swift

Affected ranges

Type: ECOSYSTEM
Events: Introduced

2.36.0

Last Affected

2.36.1

Affected versions

2.*

2.36.0

2.36.1

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-g7jq-j257-rww2/GHSA-g7jq-j257-rww2.json"