Vulnerability Description
OpenObserve is a cloud-native observability platform. In 0.70.3 and earlier, the validate_enrichment_url function in src/handler/http/request/enrichment_table/mod.rs fails to block IPv6 addresses because Rust's url crate returns them with surrounding brackets (e.g. "[::1]" not "::1"). An authenticated attacker can reach internal services blocked from external access. On cloud deployments this enables retrieval of IAM credentials via AWS IMDSv1 (169.254.169.254), GCP metadata, or Azure IMDS. On self-hosted deployments it allows probing internal network services.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openobserve | Openobserve | <= 0.70.3 |
Related Weaknesses (CWE)
References
- https://github.com/openobserve/openobserve/commit/d1a5d8f65b432e2e82f83231390decPatch
- https://github.com/openobserve/openobserve/security/advisories/GHSA-gcwf-3p7h-wmExploitMitigationVendor Advisory
- https://github.com/openobserve/openobserve/security/advisories/GHSA-gcwf-3p7h-wmExploitMitigationVendor Advisory
FAQ
What is CVE-2026-39361?
CVE-2026-39361 is a vulnerability with a CVSS score of 7.7 (HIGH). OpenObserve is a cloud-native observability platform. In 0.70.3 and earlier, the validate_enrichment_url function in src/handler/http/request/enrichment_table/mod.rs fails to block IPv6 addresses beca...
How severe is CVE-2026-39361?
CVE-2026-39361 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-39361?
Check the references section above for vendor advisories and patch information. Affected products include: Openobserve Openobserve.