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Fencer Vulns
medium 5.3

CVE-2026-95502 json

Git Sync memory exhaustion via a malicious Git server

published 2026-10-13 26 d ago modified 2026-10-16 23 d ago also EUVD-2026-98902

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits
0
none known

Summary

A Git server that Grafana's Git Sync (provisioning) is configured to use can exhaust Grafana's memory by returning oversized or highly compressed responses (uncontrolled resource consumption). Exploitation requires an administrator to have configured Git Sync with that server.

Patch / fix

  • Grafana Nanogit 1.7.0
  • Grafana Grafana OSS 13.0.11, 13.1.8, 13.2.4
  • Grafana Grafana Enterprise 13.0.11, 13.1.8, 13.2.4
  • grafana13.2 hummingbird 1 13.2.4-0.1.hum1
  • grafana12.4 hummingbird 1 12.4.12-0.4.hum1

red hat advisories RHSA-2026:85544RHSA-2026:76677

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-95502 updated cvss 5.3

grafana: grafana: Denial of Service via oversized Git Sync responses

  • Red Hat Ceph Storage 8 rhceph/grafana-rhel9 Red Hat Ceph Storage 9 rhceph/grafana-rhel10
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Hardened Images grafana13.1 13.1.8-0.3.hum1, grafana13.2 13.2.4-0.1.hum1, grafana12.4 12.4.12-0.4.hum1
    fixed: vendor fix RHSA-2026:76677
  • Red Hat Multicluster Global Hub multicluster-globalhub/multicluster-globalhub-grafana-rhel9 Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/acm-grafana-rhel9 Red Hat Ceph Storage 7 rhceph/grafana-rhel9 Red Hat Enterprise Linux 8 grafana, grafana-loki, grafana-mssql, grafana-mysql, grafana-selinux, grafana-graphite, +8 more Red Hat Enterprise Linux 9 grafana, rhel9/grafana, grafana-selinux Red Hat Enterprise Linux 10 grafana, rhel10/grafana
    not affected: vulnerable code not present
  • Red Hat Hardened Images hi/grafana
    not affected: component not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
26 d ago

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

  • Grafana Nanogit
  • Grafana Grafana OSS
  • Grafana Grafana Enterprise

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling
  • CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.