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TI-2026-42002 Aliases CVE-2026-58371GHSA-7cpf-frp7-pm75

SeaweedFS < 4.30 - Cross-Origin Information Disclosure via Unvalidated JSONP callback Parameter

Priority MEDIUM 45CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
High
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · None · None
Fix status
Partial Red Hat: 1 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-79.

Summary

SeaweedFS before 4.30 reflects the callback query parameter verbatim into responses served with Content-Type application/javascript in the shared writeJson helper (weed/server/common.go), with no callback-name validation, no X-Content-Type-Options: nosniff header, and no CORS allow-list. Every JSON endpoint that uses writeJson - including the unauthenticated master endpoints /dir/status, /dir/lookup and /cluster/status, the volume server /status, and the filer directory listing, all reachable in the default configuration (no -whiteList, no security.toml, bound to 0.0.0.0) - can therefore be loaded cross-origin via a script tag with a chosen callback, letting a third-party web page read cluster topology, volume server URLs and gRPC ports, file identifiers, and directory listings. Because the callback string is reflected at the start of the body and no nosniff header is sent, MIME-sniffing clients may also interpret the reflected content as HTML.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00333 26th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Partial seaweedfs (seaweedfs): 4.30Red Hat: 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
seaweedfsseaweedfsbefore 4.304.30Patch availableCNA
  • seaweedfs Vendorseaweedfs Affected before 4.30 Fixed in 4.30 Patch available CNA

Remediation

  • Fix · CNA seaweedfs (seaweedfs) Fixed in 4.30

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Cryostat 4AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-58371
  2. 2026-10-03 Alias added: GHSA-7cpf-frp7-pm75

References

Exploit 1

Patch 1

Other 2

  • TI-2026-39686 SeaweedFS: Path traversal in the S3 and Iceberg REST gateways allows cross-bucket access CVSS 4.0HIGH 7.8
  • TI-2026-53965 SeaweedFS: SFTP path ACL literal prefix match permits cross-tenant file read and overwrite CVSS 3.1HIGH 8.1
  • TI-2024-26879 seaweedfs v3.68 was discovered to contain a SQL injection vulnerability via the component… CVSS 3.1MEDIUM 6.5
  • TI-2026-42003 SeaweedFS < 4.34 - Cross-Bucket Object Deletion via DeleteObjects Request-Body Keys CVSS 4.0HIGH 7.2
  • TI-2026-74336 Hard-coded SSH host key in SeaweedFS SFTP Helm chart CVSS 4.0HIGH 7.0
  • TI-2026-54097 Incorrect authorization in seaweedfs CVSS 3.1HIGH 7.1
See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences