What is CVE-2026-34881?

CVE-2026-34881 is a medium-severity vulnerability in Openstack Glance, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.0/10. Published 2026-03-31.

How severe is CVE-2026-34881?

Medium severity. CVSS v3 base score is 5.0 out of 10.

SSRF in Openstack Glance

CVE-2026-34881

OpenStack Glance before 29.1.1, 30.x before 30.1.1, and 31.0.0 is affected by Server-Side Request Forgery (SSRF). By use of HTTP redirects, an authenticated user can bypass URL validation checks and redirect to internal services. Only glan…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.000 (12.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N.

Affected products

Openstack Glance — versions 0, 30.0.0, 31.0.0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

bugs.launchpad.net/glance/+bug/2138602
security.openstack.org/ossa/OSSA-2026-004.html

Frequently asked questions

What is CVE-2026-34881?: CVE-2026-34881 is a medium-severity vulnerability in Openstack Glance, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.0/10. Published 2026-03-31.
How severe is CVE-2026-34881?: Medium severity. CVSS v3 base score is 5.0 out of 10.