Vulnerability · Published Apr 7, 2026 · Assigned by GitHub_M
CVE-2026-39361OpenObserve has a SSRF Protection Bypass via IPv6 Bracket Notation in validate_enrichment_url
High 7.7
In plain English
A high-severity server-side request forgery in openobserve from openobserve. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| openobserve | openobserve | <= 0.70.3 |
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N