CVE-2026-39361: OpenObserve is a cloud-native observability platform

Q: How do I fix CVE-2026-39361?

openobserve: upgrade to newer than 0.70.3. Exact commands for each OS are on this page.

Q: Is CVE-2026-39361 being exploited?

CVE-2026-39361 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-39361 affect?

CVE-2026-39361 affects openobserve. Severity is high (CVSS 7.7). 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 s

Q: How urgent is CVE-2026-39361?

Priority 37/100. High severity; Public exploit reference

Routine

HIGH 7.7UPGRADE

CVE-2026-39361 is a high-severity flaw (CVSS 7.7) affecting openobserve. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 (1

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.7 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-04-07
Last modified	2026-10-06

Publisher (CNA): GitHub, Inc. · Vendor: openobserve

Last updated 2026-10-06 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-07 20:16 UTCPublished CVE record published
2026-10-06 22:10 UTCUpdated Record last modified

openobserve openobserve UPGRADE

Affected: <= 0.70.3

Fixed in: newer than 0.70.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy openobserve || rpm -q openobserve || openobserve --version

2. UPGRADE to newer than 0.70.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade openobserve

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade openobserve

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-39361?

openobserve: upgrade to newer than 0.70.3. Exact commands for each OS are on this page.

Is CVE-2026-39361 being exploited?

CVE-2026-39361 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-39361 affect?

CVE-2026-39361 affects openobserve. Severity is high (CVSS 7.7). 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 s

How urgent is CVE-2026-39361?

Priority 37/100. High severity; Public exploit reference

Software pages

AWS vulnerabilities

References

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