CVE catalog

CVE-2026-77406

RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, Channel.Qos in channel.go accepts negative prefetchCount and prefetchSize integers and casts them directly to uint16 and uint32 fields i

[CVE catalog]

Severity
High · CVSS 8.2CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/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
Published
Updated
Source
[NVD] · [CVE record]
EPSS
0.52% · Oct 25, 2026

RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, Channel.Qos in channel.go accepts negative prefetchCount and prefetchSize integers and casts them directly to uint16 and uint32 fields in the basic.qos method because validateQos is absent. Values such as -1 therefore wrap to 65535 or 4294967295 instead of being rejected. An application that permits untrusted configuration of these Qos values can unintentionally request extremely large prefetch limits, allowing a broker to deliver enough queued messages to exhaust client memory and disrupt processing. This issue is fixed in version 1.13.0.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debiangolang-github-rabbitmq-amqp091-gosid1.16.0-1fixed
Debiangolang-github-rabbitmq-amqp091-goforky1.16.0-1fixed
Debiangolang-github-rabbitmq-amqp091-gotrixie1.10.0-1vulnerable
Debiangolang-github-rabbitmq-amqp091-gobookworm1.5.0-2vulnerable
Gogithub.com/rabbitmq/amqp091-goNot reported1.13.0fixed
Ubuntugolang-github-rabbitmq-amqp091-go24.041.8.1-2vulnerable
Ubuntugolang-github-rabbitmq-amqp091-go24.041.9.0-1vulnerable
Ubuntugolang-github-rabbitmq-amqp091-go26.101.10.0-1vulnerable
Ubuntugolang-github-rabbitmq-amqp091-go26.101.11.0-1vulnerable
Ubuntugolang-github-rabbitmq-amqp091-go26.101.12.0-1vulnerable
Ubuntugolang-github-rabbitmq-amqp091-go26.041.10.0-1vulnerable

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debiangolang-github-rabbitmq-amqp091-gosourcesid1.14.0-1not yet assignedNot reportedNot reported
Debiangolang-github-rabbitmq-amqp091-gosourceforky1.14.0-1not yet assignedNot reportedNot reported
Debiangolang-github-rabbitmq-amqp091-gosourcetrixie(unfixed)not yet assignedNot reportedNot reported
Debiangolang-github-rabbitmq-amqp091-gosourcebookworm(unfixed)not yet assignedNot reportedNot reported
Gogithub.com/rabbitmq/amqp091-gogoNot reported1.13.0Not reportedGHSA-RM6M-HRCW-JW33Not reported

Notes

[trixie] golang-github-rabbitmq-amqp091-go: Minor issue [bookworm] golang-github-rabbitmq-amqp091-go: Limited support, minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [golang-github-rabbitmq-amqp091-go-dev]Affected

    Source package: [golang-github-rabbitmq-amqp091-go]

    Details (2)

    • 1.5.0-2 · all · bookworm

      Affected

      nvd · golang-github-rabbitmq-amqp091-go · debian · bookworm; nvd · golang-github-rabbitmq-amqp091-go · debian · 12

    • 1.5.0-2 · all · bookworm

      Affected

      nvd · golang-github-rabbitmq-amqp091-go · debian · bookworm; nvd · golang-github-rabbitmq-amqp091-go · debian · 12

[Debian 13 (Trixie)]

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]