How severe is CVE-2026-34881?

CVE-2026-34881 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-34881 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34881?

CVE-2026-34881 primarily affects Openstack Glance. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-34881?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-34881 have an EU (EUVD) identifier?

Yes. CVE-2026-34881 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17323.

When was CVE-2026-34881 published?

CVE-2026-34881 was published on 2026-03-31 and last updated on 2026-06-30.

CVE-2026-34881

CVE-2026-34881 is a medium-severity vulnerability in Openstack Glance with a CVSS 3.x base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: Medium (CVSS 3.x base score 5.0)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17323
Weakness: CWE-918
Affected product: Openstack Glance
Published: 2026-03-31
Last modified: 2026-06-30

Description

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.

Frequently asked questions

What is 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 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.
How severe is CVE-2026-34881?: CVE-2026-34881 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-34881 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34881?: CVE-2026-34881 primarily affects Openstack Glance. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-34881?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-34881 have an EU (EUVD) identifier?: Yes. CVE-2026-34881 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17323.
When was CVE-2026-34881 published?: CVE-2026-34881 was published on 2026-03-31 and last updated on 2026-06-30.

References

Affected products (2)

cpe:2.3:a:openstack:glance:*:*:*:*:*:*:*:*
cpe:2.3:a:openstack:glance:31.0.0:*:*:*:*:*:*:*

More vulnerabilities in Openstack Glance

CVE-2015-5162 — High (CVSS 7.5): The image parser in OpenStack Cinder 7.0.2 and 8.0.0 through 8.1.1; Glance before 11.0.1 and 12.0.0; and Nova before…
CVE-2024-32498 — Medium (CVSS 6.5): An issue was discovered in OpenStack Cinder through 24.0.0, Glance before 28.0.2, and Nova before 29.0.3. Arbitrary…
CVE-2017-7200 — Medium (CVSS 5.8): An SSRF issue was discovered in OpenStack Glance before Newton. The 'copy_from' feature in the Image Service API v1…
CVE-2022-47951 — Medium (CVSS 5.7): An issue was discovered in OpenStack Cinder before 19.1.2, 20.x before 20.0.2, and 21.0.0; Glance before 23.0.1, 24.x…
CVE-2015-8234 — Medium (CVSS 5.5): The image signature algorithm in OpenStack Glance 11.0.0 allows remote attackers to bypass the signature verification…
CVE-2016-8611 — Medium (CVSS 4.3): A vulnerability was found in Openstack Glance. No limits are enforced within the Glance image service for both v1 and…

All CVEs affecting Openstack Glance →

Other CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities

CVE-2026-47938 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by a Server-Side Request Forgery (SSRF)…
CVE-2026-35431 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Microsoft Entra ID Entitlement Management allows an unauthorized attacker to…
CVE-2026-32186 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Microsoft Bing allows an unauthorized attacker to elevate privileges over a…
CVE-2026-33107 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Azure Databricks allows an unauthorized attacker to elevate privileges over a…
CVE-2026-32871 — Critical (CVSS 10.0): FastMCP is a Pythonic way to build MCP servers and clients. Prior to version 3.2.0, the OpenAPIProvider in FastMCP…
CVE-2026-32169 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Azure Cloud Shell allows an unauthorized attacker to elevate privileges over a…

Browse all CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities →