CVE catalog
CVE-2026-77403
RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, Connection.openTune in connection.go accepts a server-advertised FrameMax below the AMQP frameMinSize value of 4096 bytes because the co
- Severity
- High · CVSS 8.9
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/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 - 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, Connection.openTune in connection.go accepts a server-advertised FrameMax below the AMQP frameMinSize value of 4096 bytes because the connection negotiation loop does not enforce the protocol minimum. A malicious or compromised AMQP broker can therefore advertise an extremely small FrameMax, causing later client publications to be fragmented into excessive numbers of frames and write operations. This can consume CPU and stall the client or its host. 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.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | golang-github-rabbitmq-amqp091-go | sid | 1.16.0-1 | fixed |
| Debian | golang-github-rabbitmq-amqp091-go | forky | 1.16.0-1 | fixed |
| Debian | golang-github-rabbitmq-amqp091-go | trixie | 1.10.0-1 | vulnerable |
| Debian | golang-github-rabbitmq-amqp091-go | bookworm | 1.5.0-2 | vulnerable |
| Go | github.com/rabbitmq/amqp091-go | Not reported | 1.13.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | golang-github-rabbitmq-amqp091-go | source | sid | 1.14.0-1 | not yet assigned | Not reported | Not reported |
| Debian | golang-github-rabbitmq-amqp091-go | source | forky | 1.14.0-1 | not yet assigned | Not reported | Not reported |
| Debian | golang-github-rabbitmq-amqp091-go | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | golang-github-rabbitmq-amqp091-go | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Go | github.com/rabbitmq/amqp091-go | go | Not reported | 1.13.0 | Not reported | GHSA-XWWF-M8FG-P9Q2 | Not 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 · bookwormAffected
nvd · golang-github-rabbitmq-amqp091-go · debian · bookworm; nvd · golang-github-rabbitmq-amqp091-go · debian · 12
1.5.0-2· all · bookwormAffected
nvd · golang-github-rabbitmq-amqp091-go · debian · bookworm; nvd · golang-github-rabbitmq-amqp091-go · debian · 12
[Debian 13 (Trixie)]
- [golang-github-rabbitmq-amqp091-go-dev]Affected
Source package: [golang-github-rabbitmq-amqp091-go]
Details (2)
1.10.0-1· all · trixieAffected
nvd · golang-github-rabbitmq-amqp091-go · debian · 13
1.10.0-1· all · trixieAffected
nvd · golang-github-rabbitmq-amqp091-go · debian · 13
Observed:
References
- [https://github.com/advisories/GHSA-xwwf-m8fg-p9q2]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-77403]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-77403]
- [https://security-tracker.debian.org/tracker/CVE-2026-77403]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-77403.json]
[Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]