CVE-2026-55608

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

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 20.0% of scored records. A rank, not a probability.

NVD base score

5.4 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-17.

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

2026-07-15 20:35Z1 MO AGO

Last updated

2026-07-17 12:32Z1 MO AGO

Reserved

2026-06-16

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 4.2)

CNA CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

Weaknesses

• CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass
• CWE-863Incorrect AuthorizationClass

Data version

5.2

Document digest

04ce17e1e6cd43e476833e35a3649e9a1930e383ccb2fcd80e487e5c8584e956

• github.comhttps://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-2cf7-hpwf-47h9x_refsource_CONFIRM
• github.comhttps://github.com/czlonkowski/n8n-mcp/commit/1f42899749ed0c584fb6b4fd63d75233c3edee59x_refsource_MISC
• github.comhttps://github.com/czlonkowski/n8n-mcp/releases/tag/v2.57.4x_refsource_MISC