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 glance image import functionality is affected. In particular, the web-download and glance-download import methods are subject to this vulnerability, as is the optional (not enabled by default) ovf_process image import plugin.
CVE-2026-34881
This medium-severity CVE scores 5.0 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 85% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 5.0
- EG Score
- 5.0(medium)
- EPSS
- 17.2%
- KEV
- Not listed
Published
March 31, 2026
Last Modified
June 30, 2026
References (6)
- cve@mitrehttps://bugs.launchpad.net/glance/+bug/2138602
- cve@mitrehttps://security.openstack.org/ossa/OSSA-2026-004.html
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/security/cve/CVE-2026-34881
- 134c704f-9b21-4f2e-91b3-4a467353bcc0https://bugs.launchpad.net/glance/+bug/2138602
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://bugzilla.redhat.com/show_bug.cgi?id=2440368
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34881.json
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | python-glance-doc (2:12.0.0-0ubuntu2+esm1) @ xenial | 2026-06-11 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| glance | 31.0.0 | 31.1.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 8× in last 7d / 39× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Frequently asked(5)
What is CVE-2026-34881?
When was CVE-2026-34881 disclosed?
Is CVE-2026-34881 actively exploited?
What is the CVSS score of CVE-2026-34881?
How do I remediate CVE-2026-34881?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-34881
Is Your Infrastructure Affected by CVE-2026-34881?
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