CVE-2023-32732GHSA-9HXF-PPJV-W6RQPYSEC-2026-1426
Denial-of-Service in gRPC
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 1.54, 1.53.1, 1.54.2
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
gRPC contains a vulnerability whereby a client can cause a termination of connection between a HTTP2 proxy and a gRPC server: a base64 encoding error for `-bin` suffixed headers will result in a disconnection by the gRPC server, but is typically allowed by HTTP2 proxies. We recommend upgrading beyond the commit in https://github.com/grpc/grpc/pull/32309 https://www.google.com/url
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- Google gRPC
From 1.53 · fixed in 1.54
- io.grpc:grpc-protobufMaven
From 1.53.0 · fixed in 1.53.1
- grpcioPyPI
From 1.53.0 · fixed in 1.53.1
- grpcRubyGems
From 1.53.0 · fixed in 1.53.1
- io.grpc:grpc-protobufMaven
From 1.54.0 · fixed in 1.54.2
- grpcioPyPI
From 1.54.0 · fixed in 1.54.2
- grpcRubyGems
From 1.54.0 · fixed in 1.54.2
- grpcioPyPI
From 1.53.0 · fixed in 1.53.1; From 1.54.0 · fixed in 1.54.2