{"items":[{"id":"NVI-00010621","kind":"vulnerability","title":" Pillow: Memory disclosure and segfault in libtiff encoder via crafted TIFF tags","revision":2,"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-xvh5-g6gv-559v","CVE-2026-112902"],"plain_summary":"GitHub lists this reviewed advisory for Pillow. 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-4026d6ffe52c729fefbe7972475d7788"],"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":"2026-11-05T21:18:36.840Z","value":"8.3 HIGH (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-4026d6ffe52c729fefbe7972475d7788"}],"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-7013e8d8944c537677bb3265702da17f","url":"https://github.com/advisories/GHSA-xvh5-g6gv-559v","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xvh5-g6gv-559v","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:07:30.906Z"},{"id":"sr-4026d6ffe52c729fefbe7972475d7788","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112902","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-112902","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-07T00:52:39.494Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7013e8d8944c537677bb3265702da17f"],"technology":"Pillow","known_exclusions":[],"conditions_summary":"```\n============================================================================\nMemory disclosure and segfault in libtiff encoder via crafted TIFF tags\nLocation: src/encode.c:1014  in PyImaging_LibTiffEncoderNew()\nCommit:   a707c6b21c313880d0771e54965d142dd42358b6\n============================================================================\n```\n\nA crafted TIFF file of a few hundred bytes makes Pillow copy an attacker-chosen amount of its own process memory into the TIFF it writes back out, or crash the process outright. The trigger is an ordinary `Image.open()` followed by a bare `im.save(fp, \"TIFF\")`. The only precondition is that the application re-saves images as TIFF. When the uploaded file is compressed, Pillow routes that save through libtiff automatically, with no options from the application. The attached reproducer does this with a 356-byte LZW TIFF: one crafted tag comes back holding 65536 bytes taken from `_imaging.so`'s read-only data, and a second crafted tag makes the worker die with SIGSEGV on every run.\n\nThe bug is in `PyImaging_LibTiffEncoderNew` (`src/encode.c`). It decides what arguments to pass to the variadic `TIFFSetField()` from the shape of the Python value ","public_affected_ranges":["<= 12.3.0"]}],"null_published_at":"2026-11-07T18:43:12.105Z","source_updated_at":"2026-10-21T21:29:16.000Z","source_disclosed_at":"2026-10-21T21:29:16.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T22:07:30.906Z"},{"id":"NVI-00010621","kind":"vulnerability","title":" Pillow: Memory disclosure and segfault in libtiff encoder via crafted TIFF tags","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-xvh5-g6gv-559v","CVE-2026-112902"],"plain_summary":"GitHub lists this reviewed advisory for Pillow. 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-7013e8d8944c537677bb3265702da17f"],"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":[],"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-7013e8d8944c537677bb3265702da17f","url":"https://github.com/advisories/GHSA-xvh5-g6gv-559v","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xvh5-g6gv-559v","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:07:30.906Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7013e8d8944c537677bb3265702da17f"],"technology":"Pillow","known_exclusions":[],"conditions_summary":"```\n============================================================================\nMemory disclosure and segfault in libtiff encoder via crafted TIFF tags\nLocation: src/encode.c:1014  in PyImaging_LibTiffEncoderNew()\nCommit:   a707c6b21c313880d0771e54965d142dd42358b6\n============================================================================\n```\n\nA crafted TIFF file of a few hundred bytes makes Pillow copy an attacker-chosen amount of its own process memory into the TIFF it writes back out, or crash the process outright. The trigger is an ordinary `Image.open()` followed by a bare `im.save(fp, \"TIFF\")`. The only precondition is that the application re-saves images as TIFF. When the uploaded file is compressed, Pillow routes that save through libtiff automatically, with no options from the application. The attached reproducer does this with a 356-byte LZW TIFF: one crafted tag comes back holding 65536 bytes taken from `_imaging.so`'s read-only data, and a second crafted tag makes the worker die with SIGSEGV on every run.\n\nThe bug is in `PyImaging_LibTiffEncoderNew` (`src/encode.c`). It decides what arguments to pass to the variadic `TIFFSetField()` from the shape of the Python value ","public_affected_ranges":["<= 12.3.0"]}],"null_published_at":"2026-10-31T22:27:09.626Z","source_updated_at":"2026-10-21T21:29:16.000Z","source_disclosed_at":"2026-10-21T21:29:16.000Z","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":"2026-10-31T22:07:30.906Z"}],"next_cursor":null,"snapshot_revision":"40769"}