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5.3 Medium

CVE-2026-50221 In OpenStack Swift before 2.37.2, proxy-server does not strip internal update headers (X-Container-Host,…

Description

In OpenStack Swift before 2.37.2, proxy-server does not strip internal update headers (X-Container-Host, X-Container-Device, X-Delete-At-Host, X-Delete-At-Device) from client requests before forwarding them to object-servers. An authenticated user with write access can inject these headers to redirect container update requests to an attacker-controlled server, enabling server-side request forgery. The SSRF requests expose internal cluster metadata including storage policy indexes, partition mappings, device names, and when at rest encryption is enabled, cipher text and initialization vectors for the container-level encryption key. The attacker can also cause "ghost listings" in arbitrary containers via the shard-range redirect mechanism.

Affected products and versions

Product Affected versions Fixed in
Swift 2.37 2.37.0 → < 2.37.2 2.37.2
Swift 2.36 2.36.0 → < 2.36.2 2.36.2
Swift 2.0 2.0.0 → < 2.35.3 2.35.3

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Swift

The 6 CVEs of Swift →
CVE-2026-97149 In OpenStack Swift before 2.38.2, the tempurl middleware does not reject the X-Copy-From header on PUT requests 5.3 Medium CVE-2026-71192 In OpenStack Swift through 2.38.0, the S3API middleware does not sanitize Swift-native control headers (X-Copy-From,… 6.0 Medium CVE-2026-71191 In OpenStack Swift through 2.38.0, S3API middleware does not enforce that semantic x-amz-* headers are covered by the… 6.0 Medium CVE-2026-71190 In OpenStack Swift through 2.38.0, the proxy server Accept header parser contains a regular expression vulnerable to… 8.7 High
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