CVE-2025-4565 (GCVE-0-2025-4565)

Vulnerability from cvelistv5 – Published: 2025-06-16 14:50 – Updated: 2025-06-16 15:39
VLAI?
Title
Unbounded recursion in Python Protobuf
Summary
Any project that uses Protobuf Pure-Python backend to parse untrusted Protocol Buffers data containing an arbitrary number of recursive groups, recursive messages or a series of SGROUP tags can be corrupted by exceeding the Python recursion limit. This can result in a Denial of service by crashing the application with a RecursionError. We recommend upgrading to version =>6.31.1 or beyond commit 17838beda2943d08b8a9d4df5b68f5f04f26d901
Severity ?
8.2 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
Assigner
References
Impacted products
Vendor Product Version
protocolbuffers Python-Protobuf Affected: 0 , < 4.25.8 (semver)
Affected: 0 , < 5.29.5 (semver)
Affected: 0 , < 6.31.1 (semver)
Create a notification for this product.
    protocolbuffers Python-Protobuf Affected: 0 , < 4.25.8 (semver)
Affected: 0 , < 5.29.5 (semver)
Affected: 0 , < 6.31.1 (semver)
Create a notification for this product.
Credits
Alexis Challande - Trail of Bits Ecosystem Security Team
Show details on NVD website
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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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