CVE-2026-49017Medium· 6.5▾ SunlitIn 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-s…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Jul 31.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
Last analysed / modified upstream
— → 6.5
high → medium
0.3% → 0.5%
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.
swift >= 2.35.1, < 2.35.3swift >= 2.36.0, < 2.36.2swift >= 2.37.0, < 2.37.2Upgrade past the affected range:
swift 2.37.2Affected packages:
swift >= 2.36.0, <= 2.36.1swift >= 2.37.0, <= 2.37.1Source: https://osv.dev/vulnerability/GHSA-g7jq-j257-rww2
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2013-4155MediumOpenStack Swift allows authenticated users to cause a denial of service
CVE-2015-5223MediumOpenStack Object Storage (Swift) Sensitive Data Exposure
CVE-2014-7960MediumOpenStack Swift metadata constraints are not correctly enforced
CVE-2016-0738High· 7.5OpenStack Object Storage (Swift) allows remote attackers to cause a denial of service
CVE-2015-1856MediumOpenStack Swift Unauthorized delete of versioned Swift object
CVE-2013-2161HighOpenStack Swift Unchecked user input in XML responses