Red Hat Security Advisory: Red Hat OpenStack Services on OpenShift 18.0 (openstack-glance) security update
Affects Red Hat openstack-glanceSource GCVE Database
Not known to be exploited · CVSS 5.0 Medium.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 19% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 31 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Red Hatredhat/openstack-glancepkg:rpm/redhat/openstack-glanceOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
OpenStack Image Service (code-named Glance) provides discovery, registration, and delivery services for virtual disk images. The Image Service API server provides a standard REST interface for querying information about virtual disk images stored in a variety of back-end stores, including OpenStack Object Storage. Clients can register new virtual disk images with the Image Service, query for information on publicly available disk images, and use the Image Service's client library for streaming virtual disk images. Security Fix(es): * openstack-glance: OpenStack Glance – Unvalidated URI Fetch in OVF Processing (SSRF) () * openstack-glance: OpenStack Glance – Redirect Validation Bypass in glance-download Import (SSRF) () * OpenStack Glance: Server-Side Request Forgery leading to unauthorized internal network access (CVE-2026-34881) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section.
References
- access.redhat.com/errata/RHSA-2026:39812 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2440353 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2440358 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2440368 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_39812.json (opens in a new tab)