8.2

CVE-2026-0994

Denial of Service in Python Protobuf

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Google ≫ Protobuf Version <= 33.4
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.61% 0.448
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
cve-coordination@google.com 8.2 0 0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/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
0b0ca135-0b70-47e7-9f44-1890c2a1c46c 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-674 Uncontrolled Recursion

The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

https://github.com/protocolbuffers/protobuf/pull/25239
Patch
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:3461
https://access.redhat.com/errata/RHSA-2026:3462
https://access.redhat.com/errata/RHSA-2026:8747
https://access.redhat.com/errata/RHSA-2026:8746
https://access.redhat.com/errata/RHSA-2026:8748
https://access.redhat.com/errata/RHSA-2026:16174
https://access.redhat.com/errata/RHSA-2026:3958
https://access.redhat.com/errata/RHSA-2026:3959
https://access.redhat.com/errata/RHSA-2026:3059
https://access.redhat.com/errata/RHSA-2026:3094
https://access.redhat.com/errata/RHSA-2026:3095
https://access.redhat.com/errata/RHSA-2026:3097
https://access.redhat.com/errata/RHSA-2026:3218
https://access.redhat.com/errata/RHSA-2026:3219
https://access.redhat.com/errata/RHSA-2026:3220
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