Affected: AlmaLinux:10: protobuf, AlmaLinux:10: protobuf-compiler, AlmaLinux:10: protobuf-devel, AlmaLinux:10: protobuf-lite, AlmaLinux:10: protobuf-lite-devel, AlmaLinux:10: python3-protobuf

The protobuf packages provide Protocol Buffers, Google's data interchange format. Protocol Buffers can encode structured data in an efficient yet extensible format, and provide a flexible, efficient, and automated mechanism for serializing structured data.

Security Fix(es):

* python: protobuf: Protobuf: Denial of Service due to recursion depth bypass (CVE-2026-0994)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Affected: Alpaquita:stream: py3-protobuf

Affected: Homebrew: bilix

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.

Withdrawn by the publisher.

Affected: CleanStart: airflow-2

Multiple security vulnerabilities affect the airflow-2 package. These issues are resolved in later releases. See references for individual vulnerability details.

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.

Affected: PyPI: 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.

Affected: openEuler:24.03-LTS: protobuf, openEuler:24.03-LTS-SP1: protobuf, openEuler:24.03-LTS-SP2: protobuf, openEuler:24.03-LTS-SP3: protobuf, openEuler:20.03-LTS-SP4: protobuf, openEuler:22.03-LTS-SP4: protobuf

Security Fix(es):

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.(CVE-2026-0994)

libprotobuf-lite34_1_0-32bit-34.1-1.1 on GA media

Affected: PyPI: 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.

libxslt: Processing web content may disclose sensitive information libtiff: Segment fault in libtiff in TIFFReadRGBATileExt() leading to denial of service cpython: Excessive read buffering DoS in http.client gnutls: GnuTLS: Denial of Service via excessive resource consumption during certificate verification cpython: IMAP command injection in user-controlled commands cpython: POP3 command injection in user-controlled commands python: protobuf: Protobuf: Denial of Service due to recursion depth bypass cpython: email header injection due to unquoted newlines libvpx: Heap buffer overflow in libvpx openssh: OpenSSH GSSAPI: Information disclosure or denial of service due to uninitialized variables libarchive: Infinite Loop Denial of Service in RAR5 Decompression via archive_read_data() in libarchive libarchive: libarchive: Information disclosure via heap out-of-bounds read in RAR archive processing python: Python: Command-line option injection in webbrowser.open() via crafted URLs libarchive: libarchive: Arbitrary code execution via integer overflow in ISO9660 image processing gdk-pixbuf: gdk-pixbuf: Denial of Service via heap-based buffer overflow when processing a specially crafted JPEG image libpng: libpng: Denial of service and information disclosure via heap buffer over-read in png_image_finish_read libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write API giflib: Giflib: Double-free vulnerability leading to memory corruption…

Security update for protobuf

Affected: Ubuntu:Pro:18.04:LTS: protobuf, Ubuntu:Pro:20.04:LTS: protobuf, Ubuntu:22.04:LTS: protobuf, Ubuntu:24.04:LTS: protobuf, Ubuntu:25.10: protobuf, Ubuntu:26.04:LTS: 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.

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um einen Denial of Service Angriff durchzuführen.