CVE-2026-39361

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 3.1

7.7CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 18% of CVEs (scores of 2026-10-25)

CWE

CWE-918

Published

2026-04-07

Modified

2026-10-06

Record from

the NVD, synced 2026-10-19

Affected

• openobserve:openobserve

References

• https://github.com/openobserve/openobserve/commit/d1a5d8f65b432e2e82f83231390dec7f107e8d75
• https://github.com/openobserve/openobserve/security/advisories/GHSA-gcwf-3p7h-wm79
• https://github.com/openobserve/openobserve/security/advisories/GHSA-gcwf-3p7h-wm79

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