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CVE-2026-34881

26
FAUCET Score

CVE-2026-34881 describes a Server-Side Request Forgery (SSRF) vulnerability in OpenStack Glance versions before 29.1.1, 30.x before 30.1.1, and 31.0.0. An authenticated user can exploit this by using HTTP redirects during image import to bypass URL validation, potentially allowing access to internal services. The vulnerability has a CVSS score of 5.0 (Medium), indicating it can be exploited over the network with low attack complexity and requires low privileges, primarily impacting integrity (I:L). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog, with minimal community discussion observed.

Impacted Technologies

VendorProductVersion(s)CPE
< 29.1.1CPE matchmatch criteria
cpe:2.3:a:openstack:glance:*:*:*:*:*:*:*:*
>= 30.0.0, < 30.1.1CPE matchmatch criteria
cpe:2.3:a:openstack:glance:*:*:*:*:*:*:*:*
31.0.0CPE matchmatch criteria
cpe:2.3:a:openstack:glance:31.0.0:*:*:*:*:*:*:*
>= 0, < 29.1.1CPE match
cpe:2.3:a:openstack:glance:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.0MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.1
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.27%
Probability of exploitation in next 30 days
EPSS Percentile
18.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0027 is in the 6th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

pippatch availablevia ghsa
Product: glanceFixed in: 29.2.0
pippatch availablevia ghsa
Product: glanceFixed in: 30.2.0
pippatch availablevia ghsa
Product: glanceFixed in: 31.1.0

Vendor Advisories (1)

pipGHSA-mc26-q38v-83gvmedium

OpenStack Glance is affected by Server-Side Request Forgery (SSRF)

Mar 31, 2026

References

access.redhat.com / errata/RHSA-2026:39812
access.redhat.com / security/cve/CVE-2026-34881
bugzilla.redhat.com / show_bug.cgi
security.access.redhat.com / data/csaf/v2/vex/2026/cve-2026-34881.json
bugs.launchpad.net / glance/+bug/2138602
ExploitIssue TrackingThird Party Advisory
security.openstack.org / ossa/OSSA-2026-004.html
PatchVendor Advisory