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RecursionError.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-0994.json","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-0994.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-0994","reference_id":"","reference_type":"","scores":[{"value":"0.00013","scoring_system":"epss","scoring_elements":"0.02153","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00013","scoring_system":"epss","scoring_elements":"0.02128","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00013","scoring_system":"epss","scoring_elements":"0.02136","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00013","scoring_system":"epss","scoring_elements":"0.02169","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00013","scoring_system":"epss","scoring_elements":"0.02082","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00013","scoring_system":"epss","scoring_elements":"0.02067","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00013","scoring_system":"epss","scoring_elements":"0.02094","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00013","scoring_system":"epss","scoring_elements":"0.02099","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00013","scoring_system":"epss","scoring_elements":"0.02113","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00026","scoring_system":"epss","scoring_elements":"0.07201","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00026","scoring_system":"epss","scoring_elements":"0.07245","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00026","scoring_system":"epss","scoring_elements":"0.07224","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00026","scoring_system":"epss","scoring_elements":"0.07278","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00026","scoring_system":"epss","scoring_elements":"0.07305","published_at":"2026-04-09T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-0994"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-0994","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-0994"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://github.com/protocolbuffers/protobuf","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv4","scoring_elements":"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"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/protocolbuffers/protobuf"},{"reference_url":"https://github.com/protocolbuffers/protobuf/commit/5ebddcb1bcbe51d1fe323baa145e85f4f23128cf","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv4","scoring_elements":"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"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/protocolbuffers/protobuf/commit/5ebddcb1bcbe51d1fe323baa145e85f4f23128cf"},{"reference_url":"https://github.com/protocolbuffers/protobuf/commit/d2b001626d137c62dfee6c88c87324102531868b","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv4","scoring_elements":"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"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/protocolbuffers/protobuf/commit/d2b001626d137c62dfee6c88c87324102531868b"},{"reference_url":"https://github.com/protocolbuffers/protobuf/issues/25070","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv4","scoring_elements":"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"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/protocolbuffers/protobuf/issues/25070"},{"reference_url":"https://github.com/protocolbuffers/protobuf/pull/25239","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv4","scoring_elements":"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"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-01-23T15:33:48Z/"}],"url":"https://github.com/protocolbuffers/protobuf/pull/25239"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0994","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv4","scoring_elements":"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"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0994"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1126302","reference_id":"1126302","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1126302"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2432398","reference_id":"2432398","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2432398"},{"reference_url":"https://github.com/advisories/GHSA-7gcm-g887-7qv7","reference_id":"GHSA-7gcm-g887-7qv7","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-7gcm-g887-7qv7"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:3059","reference_id":"RHSA-2026:3059","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:3059"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:3094","reference_id":"RHSA-2026:3094","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:3094"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:3095","reference_id":"RHSA-2026:3095","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:3095"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:3097","reference_id":"RHSA-2026:3097","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:3097"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:3218","reference_id":"RHSA-2026:3218","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:3218"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:3219","reference_id":"RHSA-2026:3219","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:3219"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:3220","reference_id":"RHSA-2026:3220","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:3220"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:3461","reference_id":"RHSA-2026:3461","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:3461"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:3462","reference_id":"RHSA-2026:3462","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:3462"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:3958","reference_id":"RHSA-2026:3958","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:3958"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:3959","reference_id":"RHSA-2026:3959","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:3959"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:8746","reference_id":"RHSA-2026:8746","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:8746"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:8747","reference_id":"RHSA-2026:8747","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:8747"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:8748","reference_id":"RHSA-2026:8748","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:8748"},{"reference_url":"https://usn.ubuntu.com/8063-1/","reference_id":"USN-8063-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/8063-1/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/62187?format=json","purl":"pkg:pypi/protobuf@5.29.6","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/protobuf@5.29.6"},{"url":"http://public2.vulnerablecode.io/api/packages/62186?format=json","purl":"pkg:pypi/protobuf@6.33.5","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/protobuf@6.33.5"},{"url":"http://public2.vulnerablecode.io/api/packages/897006?format=json","purl":"pkg:pypi/protobuf@7.34.0rc1","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/protobuf@7.34.0rc1"}],"aliases":["CVE-2026-0994","GHSA-7gcm-g887-7qv7"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-cg4f-vq8p-dub3"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/30187?format=json","vulnerability_id":"VCID-hwx9-7pf9-ryce","summary":"protobuf-python has a potential Denial of Service issue\n### Summary\nAny 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`](https://protobuf.dev/programming-guides/encoding/#groups) tags** can be corrupted by exceeding the Python recursion limit.\n\nReporter: Alexis Challande, Trail of Bits Ecosystem Security Team\n[ecosystem@trailofbits.com](mailto:ecosystem@trailofbits.com)\n\nAffected versions: This issue only affects the [pure-Python implementation](https://github.com/protocolbuffers/protobuf/tree/main/python#implementation-backends) of protobuf-python backend. This is the implementation when `PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=python` environment variable is set or the default when protobuf is used from Bazel or pure-Python PyPi wheels. CPython PyPi wheels do not use pure-Python by default.\n\nThis is a Python variant of a [previous issue affecting protobuf-java](https://github.com/protocolbuffers/protobuf/security/advisories/GHSA-735f-pc8j-v9w8).\n\n### Severity\nThis is a potential Denial of Service. Parsing nested protobuf data creates unbounded recursions that can be abused by an attacker.\n\n### Proof of Concept\nFor reproduction details, please refer to the unit tests [decoder_test.py](https://github.com/protocolbuffers/protobuf/blob/main/python/google/protobuf/internal/decoder_test.py#L87-L98) and [message_test](https://github.com/protocolbuffers/protobuf/blob/main/python/google/protobuf/internal/message_test.py#L1436-L1478)\n\n### Remediation and Mitigation\nA mitigation is available now. Please update to the latest available versions of the following packages:\n* protobuf-python(4.25.8, 5.29.5, 6.31.1)","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-4565.json","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-4565.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2025-4565","reference_id":"","reference_type":"","scores":[{"value":"0.00016","scoring_system":"epss","scoring_elements":"0.03737","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00016","scoring_system":"epss","scoring_elements":"0.03592","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00016","scoring_system":"epss","scoring_elements":"0.03568","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00016","scoring_system":"epss","scoring_elements":"0.03542","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00016","scoring_system":"epss","scoring_elements":"0.03554","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00016","scoring_system":"epss","scoring_elements":"0.0368","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00016","scoring_system":"epss","scoring_elements":"0.03687","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00016","scoring_system":"epss","scoring_elements":"0.0369","published_at":"2026-04-26T12:55:00Z"},{"value":"5e-05","scoring_system":"epss","scoring_elements":"0.00213","published_at":"2026-04-11T12:55:00Z"},{"value":"5e-05","scoring_system":"epss","scoring_elements":"0.00211","published_at":"2026-04-09T12:55:00Z"},{"value":"5e-05","scoring_system":"epss","scoring_elements":"0.00212","published_at":"2026-04-07T12:55:00Z"},{"value":"5e-05","scoring_system":"epss","scoring_elements":"0.00214","published_at":"2026-04-04T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2025-4565"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-4565","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-4565"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://github.com/protocolbuffers/protobuf","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv4","scoring_elements":"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"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/protocolbuffers/protobuf"},{"reference_url":"https://github.com/protocolbuffers/protobuf/blob/main/python/google/protobuf/internal/decoder_test.py#L87-L98","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv4","scoring_elements":"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"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/protocolbuffers/protobuf/blob/main/python/google/protobuf/internal/decoder_test.py#L87-L98"},{"reference_url":"https://github.com/protocolbuffers/protobuf/blob/main/python/google/protobuf/internal/message_test.py#L1436-L1478","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv4","scoring_elements":"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"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/protocolbuffers/protobuf/blob/main/python/google/protobuf/internal/message_test.py#L1436-L1478"},{"reference_url":"https://github.com/protocolbuffers/protobuf/commit/17838beda2943d08b8a9d4df5b68f5f04f26d901","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv4","scoring_elements":"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"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-06-16T15:38:57Z/"}],"url":"https://github.com/protocolbuffers/protobuf/commit/17838beda2943d08b8a9d4df5b68f5f04f26d901"},{"reference_url":"https://github.com/protocolbuffers/protobuf/security/advisories/GHSA-735f-pc8j-v9w8","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv4","scoring_elements":"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"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/protocolbuffers/protobuf/security/advisories/GHSA-735f-pc8j-v9w8"},{"reference_url":"https://github.com/protocolbuffers/protobuf/security/advisories/GHSA-8qvm-5x2c-j2w7","reference_id":"","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements"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