{"items":[{"id":"NVI-00010698","kind":"vulnerability","title":"ImageSharp: TIFF CCITT T6 encoder writes beyond an undersized output buffer","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-jjfr-hcj7-qf5w","CVE-2026-106115"],"plain_summary":"GitHub lists this reviewed advisory for SixLabors.ImageSharp, SixLabors.ImageSharp. 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-0128128bbb3977ac4f0a49fb0dcd03b2"],"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":"2026-10-26T14:21:22.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-b29357c59c26b1243c60ecd6482e206b"},{"kind":"CVSS","as_of":"2026-10-24T01:27:41.513Z","value":"7.5 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-7822dbdc85d52bcf92afde333b07d56e"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.385%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.32613. Missing scores are unknown.","source_id":"sr-0128128bbb3977ac4f0a49fb0dcd03b2"}],"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-b29357c59c26b1243c60ecd6482e206b","url":"https://github.com/advisories/GHSA-jjfr-hcj7-qf5w","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-jjfr-hcj7-qf5w","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"},{"id":"sr-7822dbdc85d52bcf92afde333b07d56e","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106115","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-106115","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:21.903Z"},{"id":"sr-0128128bbb3977ac4f0a49fb0dcd03b2","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-2026-106115","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.839Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b29357c59c26b1243c60ecd6482e206b"],"technology":"SixLabors.ImageSharp","known_exclusions":[],"conditions_summary":"### Summary\n\nThe TIFF CCITT Group 4 (T6) encoder writes beyond its logical compressed-data buffer when encoding a 1-bit image. A valid 1×1 Group 4 TIFF decoded and re-encoded with the default `TiffEncoder` terminates the process with an unhandled exception.\n\n### Affected package and versions\n\n- Package: `SixLabors.ImageSharp` (NuGet)\n- Affected range: `>= 2.1.0, <= 4.1.1`\n- Commit `0815358f9202a78bc7f3b83e19282dc3654b500f` corresponds to release **v4.1.1**.\n\nThe T6 compressor was introduced by commit `3c9eb470a07a15012c2a29ad84090dcc804a7975`, first released in v2.1.0, with the same `Width * rowsPerStrip` allocation and unchecked code writes. The 1×1 exploit terminates published v2.1.0 and v4.1.1; its uncompressed control succeeds. Source history shows no capacity fix through v4.1.1.\n### Details\n\n`TiffCcittCompressor.Initialize` allocates `Width * rowsPerStrip` bytes. A 1×1 strip therefore receives one byte.\n\nAfter encoding the row, [`T6BitCompressor.CompressStrip`](https://github.com/SixLabors/ImageSharp/blob/","public_affected_ranges":[">= 2.1.0, < 3.2.0"]},{"certainty":"source_listed","source_ids":["sr-b29357c59c26b1243c60ecd6482e206b"],"technology":"SixLabors.ImageSharp","known_exclusions":[],"conditions_summary":"### Summary\n\nThe TIFF CCITT Group 4 (T6) encoder writes beyond its logical compressed-data buffer when encoding a 1-bit image. A valid 1×1 Group 4 TIFF decoded and re-encoded with the default `TiffEncoder` terminates the process with an unhandled exception.\n\n### Affected package and versions\n\n- Package: `SixLabors.ImageSharp` (NuGet)\n- Affected range: `>= 2.1.0, <= 4.1.1`\n- Commit `0815358f9202a78bc7f3b83e19282dc3654b500f` corresponds to release **v4.1.1**.\n\nThe T6 compressor was introduced by commit `3c9eb470a07a15012c2a29ad84090dcc804a7975`, first released in v2.1.0, with the same `Width * rowsPerStrip` allocation and unchecked code writes. The 1×1 exploit terminates published v2.1.0 and v4.1.1; its uncompressed control succeeds. Source history shows no capacity fix through v4.1.1.\n### Details\n\n`TiffCcittCompressor.Initialize` allocates `Width * rowsPerStrip` bytes. A 1×1 strip therefore receives one byte.\n\nAfter encoding the row, [`T6BitCompressor.CompressStrip`](https://github.com/SixLabors/ImageSharp/blob/","public_affected_ranges":[">= 4.0.0, < 4.1.2"]}],"null_published_at":"2026-11-08T15:11:49.357Z","source_updated_at":"2026-10-26T14:21:22.000Z","source_disclosed_at":"2026-10-07T20:24:46.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T22:06:46.371Z"},{"id":"NVI-00010698","kind":"vulnerability","title":"ImageSharp: TIFF CCITT T6 encoder writes beyond an undersized output buffer","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-jjfr-hcj7-qf5w","CVE-2026-106115"],"plain_summary":"GitHub lists this reviewed advisory for SixLabors.ImageSharp, SixLabors.ImageSharp. 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-0128128bbb3977ac4f0a49fb0dcd03b2"],"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":"2026-10-26T14:21:22.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-b29357c59c26b1243c60ecd6482e206b"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.385%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.32613. Missing scores are unknown.","source_id":"sr-0128128bbb3977ac4f0a49fb0dcd03b2"}],"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-b29357c59c26b1243c60ecd6482e206b","url":"https://github.com/advisories/GHSA-jjfr-hcj7-qf5w","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-jjfr-hcj7-qf5w","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"},{"id":"sr-0128128bbb3977ac4f0a49fb0dcd03b2","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-2026-106115","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.839Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b29357c59c26b1243c60ecd6482e206b"],"technology":"SixLabors.ImageSharp","known_exclusions":[],"conditions_summary":"### Summary\n\nThe TIFF CCITT Group 4 (T6) encoder writes beyond its logical compressed-data buffer when encoding a 1-bit image. A valid 1×1 Group 4 TIFF decoded and re-encoded with the default `TiffEncoder` terminates the process with an unhandled exception.\n\n### Affected package and versions\n\n- Package: `SixLabors.ImageSharp` (NuGet)\n- Affected range: `>= 2.1.0, <= 4.1.1`\n- Commit `0815358f9202a78bc7f3b83e19282dc3654b500f` corresponds to release **v4.1.1**.\n\nThe T6 compressor was introduced by commit `3c9eb470a07a15012c2a29ad84090dcc804a7975`, first released in v2.1.0, with the same `Width * rowsPerStrip` allocation and unchecked code writes. The 1×1 exploit terminates published v2.1.0 and v4.1.1; its uncompressed control succeeds. Source history shows no capacity fix through v4.1.1.\n### Details\n\n`TiffCcittCompressor.Initialize` allocates `Width * rowsPerStrip` bytes. A 1×1 strip therefore receives one byte.\n\nAfter encoding the row, [`T6BitCompressor.CompressStrip`](https://github.com/SixLabors/ImageSharp/blob/","public_affected_ranges":[">= 2.1.0, < 3.2.0"]},{"certainty":"source_listed","source_ids":["sr-b29357c59c26b1243c60ecd6482e206b"],"technology":"SixLabors.ImageSharp","known_exclusions":[],"conditions_summary":"### Summary\n\nThe TIFF CCITT Group 4 (T6) encoder writes beyond its logical compressed-data buffer when encoding a 1-bit image. A valid 1×1 Group 4 TIFF decoded and re-encoded with the default `TiffEncoder` terminates the process with an unhandled exception.\n\n### Affected package and versions\n\n- Package: `SixLabors.ImageSharp` (NuGet)\n- Affected range: `>= 2.1.0, <= 4.1.1`\n- Commit `0815358f9202a78bc7f3b83e19282dc3654b500f` corresponds to release **v4.1.1**.\n\nThe T6 compressor was introduced by commit `3c9eb470a07a15012c2a29ad84090dcc804a7975`, first released in v2.1.0, with the same `Width * rowsPerStrip` allocation and unchecked code writes. The 1×1 exploit terminates published v2.1.0 and v4.1.1; its uncompressed control succeeds. Source history shows no capacity fix through v4.1.1.\n### Details\n\n`TiffCcittCompressor.Initialize` allocates `Width * rowsPerStrip` bytes. A 1×1 strip therefore receives one byte.\n\nAfter encoding the row, [`T6BitCompressor.CompressStrip`](https://github.com/SixLabors/ImageSharp/blob/","public_affected_ranges":[">= 4.0.0, < 4.1.2"]}],"null_published_at":"2026-11-03T17:49:14.972Z","source_updated_at":"2026-10-26T14:21:22.000Z","source_disclosed_at":"2026-10-07T20:24:46.000Z","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":"2026-10-31T22:06:46.371Z"},{"id":"NVI-00010698","kind":"vulnerability","title":"ImageSharp: TIFF CCITT T6 encoder writes beyond an undersized output buffer","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-jjfr-hcj7-qf5w","CVE-2026-106115"],"plain_summary":"GitHub lists this reviewed advisory for SixLabors.ImageSharp, SixLabors.ImageSharp. 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-b29357c59c26b1243c60ecd6482e206b"],"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":"2026-10-26T14:21:22.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-b29357c59c26b1243c60ecd6482e206b"}],"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-b29357c59c26b1243c60ecd6482e206b","url":"https://github.com/advisories/GHSA-jjfr-hcj7-qf5w","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-jjfr-hcj7-qf5w","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b29357c59c26b1243c60ecd6482e206b"],"technology":"SixLabors.ImageSharp","known_exclusions":[],"conditions_summary":"### Summary\n\nThe TIFF CCITT Group 4 (T6) encoder writes beyond its logical compressed-data buffer when encoding a 1-bit image. A valid 1×1 Group 4 TIFF decoded and re-encoded with the default `TiffEncoder` terminates the process with an unhandled exception.\n\n### Affected package and versions\n\n- Package: `SixLabors.ImageSharp` (NuGet)\n- Affected range: `>= 2.1.0, <= 4.1.1`\n- Commit `0815358f9202a78bc7f3b83e19282dc3654b500f` corresponds to release **v4.1.1**.\n\nThe T6 compressor was introduced by commit `3c9eb470a07a15012c2a29ad84090dcc804a7975`, first released in v2.1.0, with the same `Width * rowsPerStrip` allocation and unchecked code writes. The 1×1 exploit terminates published v2.1.0 and v4.1.1; its uncompressed control succeeds. Source history shows no capacity fix through v4.1.1.\n### Details\n\n`TiffCcittCompressor.Initialize` allocates `Width * rowsPerStrip` bytes. A 1×1 strip therefore receives one byte.\n\nAfter encoding the row, [`T6BitCompressor.CompressStrip`](https://github.com/SixLabors/ImageSharp/blob/","public_affected_ranges":[">= 2.1.0, < 3.2.0"]},{"certainty":"source_listed","source_ids":["sr-b29357c59c26b1243c60ecd6482e206b"],"technology":"SixLabors.ImageSharp","known_exclusions":[],"conditions_summary":"### Summary\n\nThe TIFF CCITT Group 4 (T6) encoder writes beyond its logical compressed-data buffer when encoding a 1-bit image. A valid 1×1 Group 4 TIFF decoded and re-encoded with the default `TiffEncoder` terminates the process with an unhandled exception.\n\n### Affected package and versions\n\n- Package: `SixLabors.ImageSharp` (NuGet)\n- Affected range: `>= 2.1.0, <= 4.1.1`\n- Commit `0815358f9202a78bc7f3b83e19282dc3654b500f` corresponds to release **v4.1.1**.\n\nThe T6 compressor was introduced by commit `3c9eb470a07a15012c2a29ad84090dcc804a7975`, first released in v2.1.0, with the same `Width * rowsPerStrip` allocation and unchecked code writes. The 1×1 exploit terminates published v2.1.0 and v4.1.1; its uncompressed control succeeds. Source history shows no capacity fix through v4.1.1.\n### Details\n\n`TiffCcittCompressor.Initialize` allocates `Width * rowsPerStrip` bytes. A 1×1 strip therefore receives one byte.\n\nAfter encoding the row, [`T6BitCompressor.CompressStrip`](https://github.com/SixLabors/ImageSharp/blob/","public_affected_ranges":[">= 4.0.0, < 4.1.2"]}],"null_published_at":"2026-10-31T22:27:12.376Z","source_updated_at":"2026-10-26T14:21:22.000Z","source_disclosed_at":"2026-10-07T20:24:46.000Z","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":"2026-10-31T22:06:46.371Z"}],"next_cursor":null,"snapshot_revision":"42594"}