CVE-2026-55864

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.44% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 73.2% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Received. NVD last modified this record on 2026-09-16.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-15 15:37Z1 MO AGO

Last updated

2026-09-16 15:42Z1 MO AGO

Reserved

2026-06-17

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N

Weaknesses

• CWE-918Server-Side Request Forgery (SSRF)Base

Data version

5.2

Document digest

a6f203fcc5d01820a806fb6c9eb9cf2b1315f981ef5a2cbe146771728e3033b6

• github.comhttps://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-5hx7-j24v-rffjx_refsource_CONFIRM
• github.comhttps://github.com/geonetwork/core-geonetwork/pull/9343x_refsource_MISC
• github.comhttps://github.com/geonetwork/core-geonetwork/pull/9344x_refsource_MISC
• github.comhttps://github.com/geonetwork/core-geonetwork/commit/17fdae28a5a51996bf5ff7f7e8236332c74eab77x_refsource_MISC
• github.comhttps://github.com/geonetwork/core-geonetwork/commit/a80d535c842e6af589d0bac37e7fe4ba01193757x_refsource_MISC
• github.comhttps://github.com/geonetwork/core-geonetwork/releases/tag/4.2.17x_refsource_MISC
• github.comhttps://github.com/geonetwork/core-geonetwork/releases/tag/4.4.12x_refsource_MISC