CVE-2026-0994
CVE-2026-0994 · Denial of Service in Python Protobuf
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A denial-of-service (DoS) vulnerability exists in google.protobuf.json_format.ParseDict() in Python, where the max_recursion_depth limit can be bypassed when parsing nested google.protobuf.Any messages. Due to missing recursion depth accounting inside the internal Any-handling logic, an attacker can supply deeply nested Any structures that bypass the intended recursion limit, eventually exhausting Python’s recursion stack and causing a RecursionError.
CVSS 8.2 · Hoch · EPSS 0,7% · Korrektur verfügbar
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Technologie-Stack: system · python
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protobuf
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protobuf Debian:12
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protobuf Ubuntu:Pro:18.04:LTS
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protobuf Ubuntu:Pro:20.04:LTS
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protobuf Ubuntu:22.04:LTS
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protobuf Ubuntu:24.04:LTS
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protobuf Ubuntu:25.10
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protobuf Ubuntu:26.10
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protobuf Ubuntu:26.04:LTS
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Originalquellen
- https://github.com/protocolbuffers/protobuf/pull/25239
- https://access.redhat.com/security/cve/CVE-2026-0994
- https://bugzilla.redhat.com/show_bug.cgi?id=2432398
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0994.json
- https://access.redhat.com/errata/RHSA-2026:3959
- https://access.redhat.com/errata/RHSA-2026:3958
- https://access.redhat.com/errata/RHSA-2026:3218
- https://access.redhat.com/errata/RHSA-2026:3094
- https://access.redhat.com/errata/RHSA-2026:3097
- https://access.redhat.com/errata/RHSA-2026:3220
- https://access.redhat.com/errata/RHSA-2026:3059
- https://access.redhat.com/errata/RHSA-2026:3219
- https://access.redhat.com/errata/RHSA-2026:3095
- https://access.redhat.com/errata/RHSA-2026:61627
- https://access.redhat.com/errata/RHSA-2026:3461
- https://access.redhat.com/errata/RHSA-2026:3462
- https://access.redhat.com/errata/RHSA-2026:61629
- https://access.redhat.com/errata/RHSA-2026:8748
- https://access.redhat.com/errata/RHSA-2026:8746
- https://access.redhat.com/errata/RHSA-2026:8747
- https://access.redhat.com/errata/RHSA-2026:16174
- https://nvd.nist.gov/vuln/detail/CVE-2026-0994