CVE-2026-34881

MEDIUMPre-NVD 5.05.0—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 80% 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).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Elevated
5.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.0Exploit: Elevated riskExposed: 0

A fix is available — apply it.

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.

CVSS v3
5.0
EG Score
5.0(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity50% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

March 31, 2026

Last Modified

August 14, 2026

Advisory Details (6)

Auto-updated Jul 15, 2026
🔬 Proof of concept available. Patch available. Sources: redhat.
redhat Patch Available
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34881.json
redhat Patch Available

2440368 – (CVE-2026-34881) CVE-2026-34881 openstack-glance: OpenStack Glance: Server-Side Request Forgery leading to unauthorized internal network access

https://bugzilla.redhat.com/show_bug.cgi?id=2440368
generic🟡 PoC Available

Bug #2138602 “[OSSA-2026-004] Server-Side Request Forgery (SSRF)...” : Bugs : Glance

https://bugs.launchpad.net/glance/+bug/2138602
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-34881
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:39812
generic

OSSA-2026-004: Server-Side Request Forgery (SSRF) vulnerabilities in OpenStack Glance image import functionality — OpenStack Security Advisories 0.0.1.dev351 documentation

https://security.openstack.org/ossa/OSSA-2026-004.html

Vendor Advisories for CVE-2026-34881(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatopenstack-glance-1:19.0.5-2.20260512165254.eb6ad61.el8ost2026-08-13redhat
redhatopenstack-glance-1:26.1.1-18.0.20260422134725.c2ac316.el9ost2026-07-15redhat
ubuntupython-glance-doc (2:12.0.0-0ubuntu2+esm1) @ xenial2026-06-11ubuntu

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

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
glance2:21.0.0-2 ... 2:32.0.0~rc2-2 (59 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
glance2:25.1.0-2, 2:25.1.0-2+deb12u12:25.1.0-2+deb12u2—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
glance2:30.0.0-32:30.0.0-3+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
glance2:30.0.0-3, 2:31.0.0-1, 2:31.0.0-2, 2:31.0.0~rc1-1, 2:31.0.0~rc1-22:31.0.0-3—
PyPI(1)
PackageVulnerable rangeFixed inDependents
glance15.0.2 ... 31.0.0 (77 versions)31.1.0—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 5× in last 7d / 49× 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.

Showing the most recent 100 of 159 total refreshes for this CVE.

  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-23 00:19 UTCEPSS rescore
  3. 2026-08-21 23:49 UTCEPSS rescore
  4. 2026-08-20 22:55 UTCEPSS rescore
  5. 2026-08-19 17:03 UTCEPSS rescore
  6. 2026-08-18 13:48 UTCEPSS rescore
  7. 2026-08-17 13:47 UTCEPSS rescore
  8. 2026-08-16 14:56 UTCEPSS rescore
  9. 2026-08-16 09:42 UTCEG score recompute
  10. 2026-08-16 09:42 UTCVendor advisory
  11. 2026-08-16 02:14 UTCEPSS rescore
  12. 2026-08-15 01:30 UTCEPSS rescore
  13. 2026-08-14 13:28 UTCEG score recompute
  14. 2026-08-14 13:28 UTCVendor advisory
  15. 2026-08-14 12:30 UTCEG score recompute
  16. 2026-08-14 12:30 UTCVendor advisory
  17. 2026-08-14 06:05 UTCEG score recompute
  18. 2026-08-14 06:05 UTCVendor advisory
  19. 2026-08-13 22:00 UTCEPSS rescore
  20. 2026-08-12 20:26 UTCEG score recompute
  21. 2026-08-12 20:26 UTCVendor advisory
  22. 2026-08-12 13:50 UTCEPSS rescore
  23. 2026-08-11 08:27 UTCEG score recompute
  24. 2026-08-11 08:27 UTCVendor advisory
  25. 2026-08-11 00:00 UTCEPSS rescore
Show 75 more
  1. 2026-08-10 07:03 UTCEG score recompute
  2. 2026-08-10 07:03 UTCVendor advisory
  3. 2026-08-09 13:46 UTCEPSS rescore
  4. 2026-08-09 05:40 UTCEG score recompute
  5. 2026-08-09 05:40 UTCVendor advisory
  6. 2026-08-08 16:37 UTCEPSS rescore
  7. 2026-08-07 15:46 UTCEG score recompute
  8. 2026-08-07 15:46 UTCVendor advisory
  9. 2026-08-06 13:46 UTCEPSS rescore
  10. 2026-08-06 00:38 UTCEG score recompute
  11. 2026-08-06 00:38 UTCVendor advisory
  12. 2026-08-05 19:17 UTCEPSS rescore
  13. 2026-08-04 15:10 UTCEPSS rescore
  14. 2026-08-04 10:38 UTCEPSS rescore
  15. 2026-08-03 22:57 UTCEG score recompute
  16. 2026-08-03 22:57 UTCVendor advisory
  17. 2026-08-03 10:36 UTCEPSS rescore
  18. 2026-08-02 15:00 UTCEG score recompute
  19. 2026-08-02 15:00 UTCVendor advisory
  20. 2026-08-02 02:27 UTCEPSS rescore
  21. 2026-08-01 04:16 UTCEPSS rescore
  22. 2026-07-30 16:28 UTCEPSS rescore
  23. 2026-07-30 01:30 UTCEPSS rescore
  24. 2026-07-27 14:13 UTCEPSS rescore
  25. 2026-07-26 14:54 UTCEPSS rescore
  26. 2026-07-26 14:54 UTCEPSS rescore
  27. 2026-07-25 14:18 UTCEPSS rescore
  28. 2026-07-25 14:18 UTCEPSS rescore
  29. 2026-07-24 14:17 UTCEPSS rescore
  30. 2026-07-24 14:17 UTCEPSS rescore
  31. 2026-07-23 14:18 UTCEPSS rescore
  32. 2026-07-23 14:18 UTCEPSS rescore
  33. 2026-07-23 03:09 UTCEG score recompute
  34. 2026-07-22 14:08 UTCEPSS rescore
  35. 2026-07-21 15:24 UTCEPSS rescore
  36. 2026-07-20 17:08 UTCEPSS rescore
  37. 2026-07-19 14:31 UTCEPSS rescore
  38. 2026-07-19 02:29 UTCEPSS rescore
  39. 2026-07-18 10:04 UTCEPSS rescore
  40. 2026-07-17 04:24 UTCOSV refresh
  41. 2026-07-16 17:03 UTCEPSS rescore
  42. 2026-07-15 16:57 UTCEPSS rescore
  43. 2026-07-15 16:57 UTCEPSS rescore
  44. 2026-07-15 02:00 UTCEPSS rescore
  45. 2026-07-13 22:30 UTCEPSS rescore
  46. 2026-07-13 06:13 UTCEPSS rescore
  47. 2026-07-13 06:13 UTCEPSS rescore
  48. 2026-07-12 05:46 UTCEPSS rescore
  49. 2026-07-11 08:27 UTCEPSS rescore
  50. 2026-07-09 19:10 UTCEPSS rescore
  51. 2026-07-08 15:15 UTCEPSS rescore
  52. 2026-07-07 13:46 UTCEPSS rescore
  53. 2026-07-06 16:27 UTCEPSS rescore
  54. 2026-07-06 16:27 UTCEPSS rescore
  55. 2026-07-06 02:23 UTCEPSS rescore
  56. 2026-07-06 02:23 UTCEPSS rescore
  57. 2026-07-05 02:30 UTCEPSS rescore
  58. 2026-07-04 06:31 UTCEPSS rescore
  59. 2026-07-01 15:06 UTCEPSS rescore
  60. 2026-06-30 23:22 UTCEPSS rescore
  61. 2026-06-29 14:06 UTCEPSS rescore
  62. 2026-06-29 14:06 UTCEPSS rescore
  63. 2026-06-28 14:07 UTCEPSS rescore
  64. 2026-06-28 14:07 UTCEPSS rescore
  65. 2026-06-28 04:56 UTCEPSS rescore
  66. 2026-06-28 04:56 UTCEPSS rescore
  67. 2026-06-27 03:08 UTCEPSS rescore
  68. 2026-06-25 13:49 UTCEPSS rescore
  69. 2026-06-25 13:49 UTCEPSS rescore
  70. 2026-06-24 14:05 UTCEPSS rescore
  71. 2026-06-23 21:33 UTCEPSS rescore
  72. 2026-06-23 21:33 UTCEPSS rescore
  73. 2026-06-22 14:25 UTCEPSS rescore
  74. 2026-06-22 14:25 UTCEPSS rescore
  75. 2026-06-21 14:56 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-34881?
CVE-2026-34881 is a medium vulnerability published on March 31, 2026. 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,…
When was CVE-2026-34881 disclosed?
CVE-2026-34881 was first published in the National Vulnerability Database on March 31, 2026, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34881 actively exploited?
CVE-2026-34881 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 80.9% of all scored CVEs.
What is the CVSS score of CVE-2026-34881?
CVE-2026-34881 has a CVSS v3 base score of 5.0 (NVD).
How do I remediate CVE-2026-34881?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34881, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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