CVE-2026-42880

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 ImpacttotalSuccessful exploitation gives total 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

0.51% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 40.8% of scored records. A rank, not a probability.

NVD base score

9.6 (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:C/C:H/I:H/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-08-17.

Red Hat severity

Important. 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

2026-05-07 22:20Z3 MO AGO

Last updated

2026-08-17 12:04Z18 DAYS AGO

Reserved

2026-04-30

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Critical (CVSS 9.6)

CNA CVSS vector

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

Weaknesses

• CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass
• CWE-212Improper Removal of Sensitive Information Before Storage or TransferBase

Data version

5.2

Document digest

fba0177874cd9ee531570784e148cba81528a4b142ece81edb73ba70c0a84467

• github.comhttps://github.com/argoproj/argo-cd/security/advisories/GHSA-3v3m-wc6v-x4x3x_refsource_CONFIRM
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-42880vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2467882https://bugzilla.redhat.com/show_bug.cgi?id=2467882issue-trackingx_refsource_REDHAT
• security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42880.jsonx_sadp-csaf-vex
• access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:20943vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:20947vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/errata/RHBA-2026:12433vendor-advisoryx_refsource_REDHAT