CVE-2026-50159

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.
• 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

0.61% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 46.5% of scored records. A rank, not a probability.

NVD base score

5.3 (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:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/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 2026-08-07.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2026-08-06 19:55Z29 DAYS AGO

Last updated

2026-08-07 17:18Z28 DAYS AGO

Reserved

2026-06-03

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-94Improper Control of Generation of Code ('Code Injection')Base
• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.2

Document digest

20ecfdb12a11a9670bafc7a2e3adfab2f7cc502f379c46142626a80f69fa235f

• github.comhttps://github.com/mermaid-js/mermaid/security/advisories/GHSA-6x64-9x62-f2gxx_refsource_CONFIRM
• github.comhttps://github.com/mermaid-js/mermaid/pull/8022x_refsource_MISC
• github.comhttps://github.com/mermaid-js/mermaid/commit/12d472c9ed43f94814b110da8d7a9ae6dd5266edx_refsource_MISC
• github.comhttps://github.com/mermaid-js/mermaid/commit/7e83f1533318b307764d961906a73377266f4c5ex_refsource_MISC
• github.comhttps://github.com/mermaid-js/mermaid/releases/tag/mermaid@11.16.1x_refsource_MISC
• github.comhttps://github.com/mermaid-js/mermaid/releases/tag/v10.9.8x_refsource_MISC