CVE-2026-77411

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Source
https://cve.org/CVERecord?id=CVE-2026-77411
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77411.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-77411
Aliases
Downstream
Published
2026-09-16T14:45:48Z
Modified
2026-09-18T03:48:30Z
Severity
  • 9.5 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator
Summary
RabbitMQ amqp091-go: Protocol Desynchronization and Frame Injection via Integer Overflow in readLongstr
Details

RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, readLongstr in read.go returns an empty string and a nil error when a declared AMQP longstr length exceeds 0x7FFFFFFF instead of returning ErrSyntax. The function leaves the declared field bytes unread, while readTable treats the operation as successful and continues parsing from the wrong offset. A malicious or compromised broker can provide an oversized longstr in a table field and desynchronize subsequent AMQP parsing, causing attacker-controlled trailing bytes to be interpreted as later fields or frames and disrupting connection integrity and availability. This issue is fixed in version 1.13.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-754"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77411.json"
}
References

Affected packages

Git / github.com/rabbitmq/amqp091-go

Affected ranges

Type
GIT
Repo
https://github.com/rabbitmq/amqp091-go
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
143c1ace5fa7344cee135e5c7d22970f0de68282
Fixed
d26d57e952cc61554ea9c54bd676c8f40ed0d84d
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.13.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v1.*
v1.1.0
v1.10.0
v1.11.0
v1.12.0
v1.2.0
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.3.4
v1.4.0
v1.5.0
v1.6.0
v1.6.1
v1.6.1-rc.1
v1.6.1-rc.2
v1.7.0
v1.8.0
v1.8.1
v1.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77411.json"