CVE-2026-76878

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

0.48% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 39.0% of scored records. A rank, not a probability.

NVD base score

8.4 (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:N/VA:N/SC:L/SI:H/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 2026-08-21.

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

2026-08-19 22:04Z15 DAYS AGO

Last updated

2026-08-21 01:30Z14 DAYS AGO

Reserved

2026-08-19

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 8.4)

CNA CVSS vector

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

Weaknesses

• CWE-688Function Call With Incorrect Variable or Reference as ArgumentVariant

Data version

5.2

Document digest

9c5f613a8ce339a5df28f741405d270d456ef68b904baa0e58cd912be9407f37

• launchpad.nethttps://launchpad.net/bugs/2161276issue-tracking
• launchpad.nethttps://launchpad.net/bugs/2161771issue-tracking
• security.openstack.orghttps://security.openstack.org/ossa/OSSA-2026-036.htmlvendor-advisory
• lists.openstack.orghttps://lists.openstack.org/archives/list/openstack-announce@lists.openstack.org/thread/O6PKAUNMNZP6FRHLUUGBYELCRBEPB52B/vendor-advisorymailing-list
• www.openwall.comhttps://www.openwall.com/lists/oss-security/2026/08/19/5