CVE-2022-1941Medium· 6.5▾ SunlitA parsing vulnerability for the MessageSet type in the ProtocolBuffers can lead to out of memory failures. A specially crafted message with multiple key-value per elements creates parsing issues, and can lead to a Denial of Service against…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.3 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 31.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
1.2%
1.2% → 1.5%
7.5 → 6.5
high → medium
Last analysed / modified upstream
A parsing vulnerability for the MessageSet type in the ProtocolBuffers can lead to out of memory failures. A specially crafted message with multiple key-value per elements creates parsing issues, and can lead to a Denial of Service against services receiving unsanitized input.
protobuf: message parsing vulnerability in ProtocolBuffers — rated Moderate by Red Hat. Released 2022-09-22, updated 2026-10-16.
Fixed:
Not affected:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258 https://access.redhat.com/errata/RHSA-2025:7138
Affected packages:
protobuf < 3.18.3protobuf >= 3.19.0, < 3.19.5protobuf >= 3.20.0, < 3.20.2protobuf >= 4.0.0, < 4.21.6Patched in:
protobuf 3.18.3protobuf 3.19.5protobuf 3.20.2protobuf 4.21.6Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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