CVE-2026-56422

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 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

0.60% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 48.6% of scored records. A rank, not a probability.

NVD base score

9.4 (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:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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

Awaiting Analysis. NVD last modified this record on 2026-06-22.

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

2026-06-22 11:43Z4 MO AGO

Last updated

2026-06-23 05:58Z4 MO AGO

Reserved

2026-06-22

Assigning CNA

CIRCL

Record state

PUBLISHED

Severity

Critical (CVSS 9.4)

CNA CVSS vector

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

Weaknesses

• CWE-639Authorization Bypass Through User-Controlled KeyBase

Data version

5.2

Document digest

c35c5dab1a87bfcdc09d0559a3ad41c12d84e2611fbeb464be41cf10a19ea100

• github.comhttps://github.com/MISP/MISP/commit/7acf8220cafac58bcfb362da37aca512fe4bb396patch
• github.comhttps://github.com/MISP/MISP/commit/bc182d55dde5686a36ca2eb88fe6c2adabb9fad9patch
• github.comhttps://github.com/MISP/MISP/commit/58f637aaab4d133e72f1454ebb963191d96d3b78patch
• github.comhttps://github.com/MISP/MISP/commit/05aad418c57bb78e6b58a843d70d45de8f50db45patch
• github.comhttps://github.com/MISP/MISP/commit/63aebc27a878233b9475c742985aaef909bc755bpatch
• github.comhttps://github.com/MISP/MISP/commit/00b2e3dae56fa24ea750eb525cc4709b7e5bee85patch
• github.comhttps://github.com/MISP/MISP/commit/634f1f87c295193486c08c2c7ba1fee8a7339baapatch
• github.comhttps://github.com/MISP/MISP/commit/ab9619dfa6cb5210fd20fb3b0b57006e4fc93916patch
• github.comhttps://github.com/MISP/MISP/commit/8311427c2edd72a8341f0a65e1f11073d7ad9191patch
• github.comhttps://github.com/MISP/MISP/commit/c80a3533b3d787f45f5185a4621cc0f05b0cf2e5patch
• github.comhttps://github.com/MISP/MISP/commit/025f711506850aadb69cde1b57e5e5d57628c87fpatch
• github.comhttps://github.com/MISP/MISP/commit/3ff6bd9cfdab5d41b4667ea7298d88ffd6f3fcb8patch
• github.comhttps://github.com/MISP/MISP/commit/84bafe69f5d0ab7f811371c0801a613f271ebc0bpatch
• github.comhttps://github.com/MISP/MISP/commit/2cc26f38f3e85c594957899f09043d5193146607patch
• github.comhttps://github.com/MISP/MISP/commit/57433015815e59db5a1f11536f90920952cf3fcdpatch
• github.comhttps://github.com/MISP/MISP/commit/9341690e9b6dde7f0605edea5533e05ba7362e35