CVE-2026-100900

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• 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

0.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 4.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

Deferred. NVD last modified this record on 2026-10-01.

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

2026-09-28 02:30Z1 MO AGO

Last updated

2026-10-01 14:00Z27 DAYS AGO

Reserved

2026-09-27

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.1)

CNA CVSS vector

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

Weaknesses

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

Data version

5.2

Document digest

eefb1e167c189effc9638d000f8f0fca876197d47bd7e6437ca7ee467ff99f0d

• vuldb.comVDB-410850 | DevaslanPHP project-management Jira Import jira-import updateJiraProjects server-side request forgeryhttps://vuldb.com/vuln/410850vdb-entrytechnical-description
• vuldb.comVDB-410850 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/410850/ctisignaturepermissions-required
• vuldb.comCVE-2026-100900 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-100900third-party-advisory
• vuldb.comSubmit #919154 | DevaslanPHP project-management ≤1.2.4/2.0.0-beta1 Server-Side Request Forgeryhttps://vuldb.com/submit/919154third-party-advisory
• github.comhttps://github.com/dddwmr/CVE/blob/main/Server-Side%20Request%20Forgery%20in%20Jira%20Import%20via%20Controllable%20Host%20and%20Missing%20canAccess%20.mdexploit