CVE-2026-15809

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

0.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 6.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-09-02.

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

2026-07-15 12:32Z1 MO AGO

Last updated

2026-09-02 19:40Z1 DAY AGO

Reserved

2026-07-15

Assigning CNA

redhat

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-116Improper Encoding or Escaping of OutputClass
• CWE-134Use of Externally-Controlled Format StringBase

Data version

5.2

Document digest

44722b1df567cd70dbeb7b4cc0fc0512dd8fca8232bf5f4290f28e3fc0f8fc06

• access.redhat.comRHSA-2026:57361https://access.redhat.com/errata/RHSA-2026:57361vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:60444https://access.redhat.com/errata/RHSA-2026:60444vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:60449https://access.redhat.com/errata/RHSA-2026:60449vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-15809vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2500846https://bugzilla.redhat.com/show_bug.cgi?id=2500846issue-trackingx_refsource_REDHAT
• github.comhttps://github.com/cri-o/cri-o/pull/6450
• github.comhttps://github.com/cri-o/cri-o/pull/6524