{"items":[{"id":"NVI-00013243","kind":"vulnerability","title":"GitPython: Denial of Service via catastrophic backtracking (ReDoS) in Actor.name_email_regex — commit author/committer field parsing","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-g5vv-9gxw-82hx","CVE-2026-87819"],"plain_summary":"GitHub lists this reviewed advisory for GitPython. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0d94dce5217e3ba4cd0de31fb0cedb1c"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-30T23:29:16.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-a1bf126a71e3da1e62a08dfbe9d856fb"},{"kind":"CVSS","as_of":"2026-09-18T18:17:34.697Z","value":"7.5 HIGH (3.1)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-7a249aacabc85ce4c22faf8aad4f6a9f"},{"kind":"CVSS","as_of":"2026-09-18T18:17:34.697Z","value":"8.7 HIGH (4.0)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-7a249aacabc85ce4c22faf8aad4f6a9f"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.521%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.44248. Missing scores are unknown.","source_id":"sr-0d94dce5217e3ba4cd0de31fb0cedb1c"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-a1bf126a71e3da1e62a08dfbe9d856fb","url":"https://github.com/advisories/GHSA-g5vv-9gxw-82hx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-g5vv-9gxw-82hx","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:22:52.960Z"},{"id":"sr-7a249aacabc85ce4c22faf8aad4f6a9f","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-87819","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-87819","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-04T09:59:30.678Z"},{"id":"sr-0d94dce5217e3ba4cd0de31fb0cedb1c","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-87819","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:17:01.144Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-a1bf126a71e3da1e62a08dfbe9d856fb"],"technology":"GitPython","known_exclusions":[],"conditions_summary":"### Summary\n\nGitPython's `Actor.name_email_regex` regular expression (`git/util.py`, line 863)\nis vulnerable to catastrophic backtracking (ReDoS — Regular Expression Denial of\nService). When GitPython parses the `author` or `committer` header of a git commit\nobject that contains a long string with an unterminated ``), the\nPython regex engine enters quadratic backtracking, causing complete single-threaded\nCPU exhaustion proportional to the square of the input length.\n\nA single crafted commit object can block any GitPython API call that reads\n`.author` or `.committer` for **over two minutes per invocation**, enabling denial\nof service against CI runners, code-hosting backends, repository-scanning\npipelines, or any service that processes commits from third-party or untrusted\nrepositories.\n\n---\n\n### Details\n\n**Vulnerable file and line:**\n\n`git/util.py`, line 863:\n\n```python\nname_email_regex = re.compile(r\"(.*) \")\n```\n\nThis regex is evaluated inside `Actor._from_string()` (line 909) every time\nGitPython resolves a commit's `.author` or `.committer` property.\n\n**Full call chain — from public API to vulnerable sink:**\n\n\n\n\ncommit.author # any ordinary GitPython API","public_affected_ranges":["<= 3.1.59"]}],"null_published_at":"2026-11-08T15:11:49.360Z","source_updated_at":"2026-09-30T23:29:16.000Z","source_disclosed_at":"2026-09-30T23:29:14.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T07:22:52.960Z"},{"id":"NVI-00013243","kind":"vulnerability","title":"GitPython: Denial of Service via catastrophic backtracking (ReDoS) in Actor.name_email_regex — commit author/committer field parsing","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-g5vv-9gxw-82hx","CVE-2026-87819"],"plain_summary":"GitHub lists this reviewed advisory for GitPython. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0d94dce5217e3ba4cd0de31fb0cedb1c"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-30T23:29:16.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-a1bf126a71e3da1e62a08dfbe9d856fb"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.521%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.44248. Missing scores are unknown.","source_id":"sr-0d94dce5217e3ba4cd0de31fb0cedb1c"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-a1bf126a71e3da1e62a08dfbe9d856fb","url":"https://github.com/advisories/GHSA-g5vv-9gxw-82hx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-g5vv-9gxw-82hx","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:22:52.960Z"},{"id":"sr-0d94dce5217e3ba4cd0de31fb0cedb1c","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-87819","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:17:01.144Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-a1bf126a71e3da1e62a08dfbe9d856fb"],"technology":"GitPython","known_exclusions":[],"conditions_summary":"### Summary\n\nGitPython's `Actor.name_email_regex` regular expression (`git/util.py`, line 863)\nis vulnerable to catastrophic backtracking (ReDoS — Regular Expression Denial of\nService). When GitPython parses the `author` or `committer` header of a git commit\nobject that contains a long string with an unterminated ``), the\nPython regex engine enters quadratic backtracking, causing complete single-threaded\nCPU exhaustion proportional to the square of the input length.\n\nA single crafted commit object can block any GitPython API call that reads\n`.author` or `.committer` for **over two minutes per invocation**, enabling denial\nof service against CI runners, code-hosting backends, repository-scanning\npipelines, or any service that processes commits from third-party or untrusted\nrepositories.\n\n---\n\n### Details\n\n**Vulnerable file and line:**\n\n`git/util.py`, line 863:\n\n```python\nname_email_regex = re.compile(r\"(.*) \")\n```\n\nThis regex is evaluated inside `Actor._from_string()` (line 909) every time\nGitPython resolves a commit's `.author` or `.committer` property.\n\n**Full call chain — from public API to vulnerable sink:**\n\n\n\n\ncommit.author # any ordinary GitPython API","public_affected_ranges":["<= 3.1.59"]}],"null_published_at":"2026-11-04T10:04:47.591Z","source_updated_at":"2026-09-30T23:29:16.000Z","source_disclosed_at":"2026-09-30T23:29:14.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-01T07:22:52.960Z"},{"id":"NVI-00013243","kind":"vulnerability","title":"GitPython: Denial of Service via catastrophic backtracking (ReDoS) in Actor.name_email_regex — commit author/committer field parsing","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-g5vv-9gxw-82hx","CVE-2026-87819"],"plain_summary":"GitHub lists this reviewed advisory for GitPython. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-a1bf126a71e3da1e62a08dfbe9d856fb"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-30T23:29:16.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-a1bf126a71e3da1e62a08dfbe9d856fb"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-a1bf126a71e3da1e62a08dfbe9d856fb","url":"https://github.com/advisories/GHSA-g5vv-9gxw-82hx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-g5vv-9gxw-82hx","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:22:52.960Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-a1bf126a71e3da1e62a08dfbe9d856fb"],"technology":"GitPython","known_exclusions":[],"conditions_summary":"### Summary\n\nGitPython's `Actor.name_email_regex` regular expression (`git/util.py`, line 863)\nis vulnerable to catastrophic backtracking (ReDoS — Regular Expression Denial of\nService). When GitPython parses the `author` or `committer` header of a git commit\nobject that contains a long string with an unterminated ``), the\nPython regex engine enters quadratic backtracking, causing complete single-threaded\nCPU exhaustion proportional to the square of the input length.\n\nA single crafted commit object can block any GitPython API call that reads\n`.author` or `.committer` for **over two minutes per invocation**, enabling denial\nof service against CI runners, code-hosting backends, repository-scanning\npipelines, or any service that processes commits from third-party or untrusted\nrepositories.\n\n---\n\n### Details\n\n**Vulnerable file and line:**\n\n`git/util.py`, line 863:\n\n```python\nname_email_regex = re.compile(r\"(.*) \")\n```\n\nThis regex is evaluated inside `Actor._from_string()` (line 909) every time\nGitPython resolves a commit's `.author` or `.committer` property.\n\n**Full call chain — from public API to vulnerable sink:**\n\n\n\n\ncommit.author # any ordinary GitPython API","public_affected_ranges":["<= 3.1.59"]}],"null_published_at":"2026-11-01T07:29:12.931Z","source_updated_at":"2026-09-30T23:29:16.000Z","source_disclosed_at":"2026-09-30T23:29:14.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-01T07:22:52.960Z"}],"next_cursor":null,"snapshot_revision":"42594"}