CVE-2026-77404

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

0.10% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 1.0% of scored records. A rank, not a probability.

NVD base score

8.7 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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

Awaiting Analysis. NVD last modified this record on 2026-09-23.

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

2026-09-16 14:40Z1 MO AGO

Last updated

2026-09-16 15:21Z1 MO AGO

Reserved

2026-08-20

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.7)

CNA CVSS vector

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

Weaknesses

• CWE-116Improper Encoding or Escaping of OutputClass
• CWE-140Improper Neutralization of DelimitersBase

Data version

5.2

Document digest

7c3b8c5e07d39a745390b840f15be49579a52e7a6794a6cfa64e3efcd9a468e5

• github.comhttps://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-465g-fh3v-9jw4x_refsource_CONFIRM
• github.comhttps://github.com/rabbitmq/amqp091-go/pull/352x_refsource_MISC
• github.comhttps://github.com/rabbitmq/amqp091-go/commit/743d488e46955fe7ffc55506fe2c401d01216783x_refsource_MISC
• github.comhttps://github.com/rabbitmq/amqp091-go/releases/tag/v1.13.0x_refsource_MISC