{"items":[{"id":"NVI-00010597","kind":"vulnerability","title":"ImageSharp: BigTIFF IFD count can keep a decoder thread in a non-progressing loop","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-wmxv-xphr-5c9g","CVE-2026-106116"],"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-0981acec8c24429cb75ee45e1c50fe14"],"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":"2026-10-26T14:20:10.000Z","value":"5.3 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5f938f5ba7ab709488043833808788ff"},{"kind":"CVSS","as_of":"2026-10-24T01:24:27.543Z","value":"5.3 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-6e1be7a2fafde93595c8a7d23fba5afb"},{"kind":"EPSS","as_of":"2026-11-05T12:03:04.000Z","value":"0.328%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.26104. Missing scores are unknown.","source_id":"sr-0981acec8c24429cb75ee45e1c50fe14"}],"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-5f938f5ba7ab709488043833808788ff","url":"https://github.com/advisories/GHSA-wmxv-xphr-5c9g","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-wmxv-xphr-5c9g","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"},{"id":"sr-6e1be7a2fafde93595c8a7d23fba5afb","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106116","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-106116","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:21.903Z"},{"id":"sr-0981acec8c24429cb75ee45e1c50fe14","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-2026-106116","publisher":"FIRST EPSS","observed_at":"2026-11-06T00:24:57.625Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5f938f5ba7ab709488043833808788ff"],"technology":"SixLabors.ImageSharp","known_exclusions":[],"conditions_summary":"### Summary\n\n`SixLabors.ImageSharp` 4.1.1 can spend an attacker-controlled duration decoding a\nsmall malformed BigTIFF. The BigTIFF IFD entry-count field is 64-bit. The reader\niterates once per declared entry, but when fewer than 20 bytes remain for an entry,\nthe entry read returns without advancing. A 24-byte input can therefore run billions\nof iterations without consuming input.\n\nOne decoder invocation occupied one executing thread for more than five seconds in\nthe tested environment. This report makes no worker-pool exhaustion claim.\n\n### Affected package and versions\n\n- Package: `SixLabors.ImageSharp` (NuGet)\n- Affected range: `>= 2.0.0, <= 4.1.1`\n- Commit `0815358f9202a78bc7f3b83e19282dc3654b500f` corresponds to release **v4.1.1**.\n\nBigTIFF decoding and the unbounded `ReadValues64` loop first appear in v2.0.0. Every release tag from v2.0.0 through v4.1.1 retains that loop without constraining the entry count or terminating when a truncated entry makes no progress. The 24-byte PoC exceeded the five-second timeout on published v2.0.0 and v4.1.1; the one-entry control returned promptly on both.\n### Details\n\n[`ReadValues64`](https://github.com/SixLabors/ImageSharp/blob/0815358f920","public_affected_ranges":[">= 2.0.0, < 3.2.0"]},{"certainty":"source_listed","source_ids":["sr-5f938f5ba7ab709488043833808788ff"],"technology":"SixLabors.ImageSharp","known_exclusions":[],"conditions_summary":"### Summary\n\n`SixLabors.ImageSharp` 4.1.1 can spend an attacker-controlled duration decoding a\nsmall malformed BigTIFF. The BigTIFF IFD entry-count field is 64-bit. The reader\niterates once per declared entry, but when fewer than 20 bytes remain for an entry,\nthe entry read returns without advancing. A 24-byte input can therefore run billions\nof iterations without consuming input.\n\nOne decoder invocation occupied one executing thread for more than five seconds in\nthe tested environment. This report makes no worker-pool exhaustion claim.\n\n### Affected package and versions\n\n- Package: `SixLabors.ImageSharp` (NuGet)\n- Affected range: `>= 2.0.0, <= 4.1.1`\n- Commit `0815358f9202a78bc7f3b83e19282dc3654b500f` corresponds to release **v4.1.1**.\n\nBigTIFF decoding and the unbounded `ReadValues64` loop first appear in v2.0.0. Every release tag from v2.0.0 through v4.1.1 retains that loop without constraining the entry count or terminating when a truncated entry makes no progress. The 24-byte PoC exceeded the five-second timeout on published v2.0.0 and v4.1.1; the one-entry control returned promptly on both.\n### Details\n\n[`ReadValues64`](https://github.com/SixLabors/ImageSharp/blob/0815358f920","public_affected_ranges":[">= 4.0.0, < 4.1.2"]}],"null_published_at":"2026-11-08T15:11:49.414Z","source_updated_at":"2026-10-26T14:20:10.000Z","source_disclosed_at":"2026-10-07T20:24:32.000Z","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-00010597","kind":"vulnerability","title":"ImageSharp: BigTIFF IFD count can keep a decoder thread in a non-progressing loop","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-wmxv-xphr-5c9g","CVE-2026-106116"],"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-6e1be7a2fafde93595c8a7d23fba5afb"],"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":"2026-10-26T14:20:10.000Z","value":"5.3 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5f938f5ba7ab709488043833808788ff"},{"kind":"CVSS","as_of":"2026-10-24T01:24:27.543Z","value":"5.3 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-6e1be7a2fafde93595c8a7d23fba5afb"}],"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-5f938f5ba7ab709488043833808788ff","url":"https://github.com/advisories/GHSA-wmxv-xphr-5c9g","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-wmxv-xphr-5c9g","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"},{"id":"sr-6e1be7a2fafde93595c8a7d23fba5afb","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106116","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-106116","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:21.903Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5f938f5ba7ab709488043833808788ff"],"technology":"SixLabors.ImageSharp","known_exclusions":[],"conditions_summary":"### Summary\n\n`SixLabors.ImageSharp` 4.1.1 can spend an attacker-controlled duration decoding a\nsmall malformed BigTIFF. The BigTIFF IFD entry-count field is 64-bit. The reader\niterates once per declared entry, but when fewer than 20 bytes remain for an entry,\nthe entry read returns without advancing. A 24-byte input can therefore run billions\nof iterations without consuming input.\n\nOne decoder invocation occupied one executing thread for more than five seconds in\nthe tested environment. This report makes no worker-pool exhaustion claim.\n\n### Affected package and versions\n\n- Package: `SixLabors.ImageSharp` (NuGet)\n- Affected range: `>= 2.0.0, <= 4.1.1`\n- Commit `0815358f9202a78bc7f3b83e19282dc3654b500f` corresponds to release **v4.1.1**.\n\nBigTIFF decoding and the unbounded `ReadValues64` loop first appear in v2.0.0. Every release tag from v2.0.0 through v4.1.1 retains that loop without constraining the entry count or terminating when a truncated entry makes no progress. The 24-byte PoC exceeded the five-second timeout on published v2.0.0 and v4.1.1; the one-entry control returned promptly on both.\n### Details\n\n[`ReadValues64`](https://github.com/SixLabors/ImageSharp/blob/0815358f920","public_affected_ranges":[">= 2.0.0, < 3.2.0"]},{"certainty":"source_listed","source_ids":["sr-5f938f5ba7ab709488043833808788ff"],"technology":"SixLabors.ImageSharp","known_exclusions":[],"conditions_summary":"### Summary\n\n`SixLabors.ImageSharp` 4.1.1 can spend an attacker-controlled duration decoding a\nsmall malformed BigTIFF. The BigTIFF IFD entry-count field is 64-bit. The reader\niterates once per declared entry, but when fewer than 20 bytes remain for an entry,\nthe entry read returns without advancing. A 24-byte input can therefore run billions\nof iterations without consuming input.\n\nOne decoder invocation occupied one executing thread for more than five seconds in\nthe tested environment. This report makes no worker-pool exhaustion claim.\n\n### Affected package and versions\n\n- Package: `SixLabors.ImageSharp` (NuGet)\n- Affected range: `>= 2.0.0, <= 4.1.1`\n- Commit `0815358f9202a78bc7f3b83e19282dc3654b500f` corresponds to release **v4.1.1**.\n\nBigTIFF decoding and the unbounded `ReadValues64` loop first appear in v2.0.0. Every release tag from v2.0.0 through v4.1.1 retains that loop without constraining the entry count or terminating when a truncated entry makes no progress. The 24-byte PoC exceeded the five-second timeout on published v2.0.0 and v4.1.1; the one-entry control returned promptly on both.\n### Details\n\n[`ReadValues64`](https://github.com/SixLabors/ImageSharp/blob/0815358f920","public_affected_ranges":[">= 4.0.0, < 4.1.2"]}],"null_published_at":"2026-11-07T07:07:42.490Z","source_updated_at":"2026-10-26T14:20:10.000Z","source_disclosed_at":"2026-10-07T20:24:32.000Z","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-00010597","kind":"vulnerability","title":"ImageSharp: BigTIFF IFD count can keep a decoder thread in a non-progressing loop","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-wmxv-xphr-5c9g","CVE-2026-106116"],"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-5f938f5ba7ab709488043833808788ff"],"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":"2026-10-26T14:20:10.000Z","value":"5.3 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5f938f5ba7ab709488043833808788ff"}],"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-5f938f5ba7ab709488043833808788ff","url":"https://github.com/advisories/GHSA-wmxv-xphr-5c9g","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-wmxv-xphr-5c9g","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5f938f5ba7ab709488043833808788ff"],"technology":"SixLabors.ImageSharp","known_exclusions":[],"conditions_summary":"### Summary\n\n`SixLabors.ImageSharp` 4.1.1 can spend an attacker-controlled duration decoding a\nsmall malformed BigTIFF. The BigTIFF IFD entry-count field is 64-bit. The reader\niterates once per declared entry, but when fewer than 20 bytes remain for an entry,\nthe entry read returns without advancing. A 24-byte input can therefore run billions\nof iterations without consuming input.\n\nOne decoder invocation occupied one executing thread for more than five seconds in\nthe tested environment. This report makes no worker-pool exhaustion claim.\n\n### Affected package and versions\n\n- Package: `SixLabors.ImageSharp` (NuGet)\n- Affected range: `>= 2.0.0, <= 4.1.1`\n- Commit `0815358f9202a78bc7f3b83e19282dc3654b500f` corresponds to release **v4.1.1**.\n\nBigTIFF decoding and the unbounded `ReadValues64` loop first appear in v2.0.0. Every release tag from v2.0.0 through v4.1.1 retains that loop without constraining the entry count or terminating when a truncated entry makes no progress. The 24-byte PoC exceeded the five-second timeout on published v2.0.0 and v4.1.1; the one-entry control returned promptly on both.\n### Details\n\n[`ReadValues64`](https://github.com/SixLabors/ImageSharp/blob/0815358f920","public_affected_ranges":[">= 2.0.0, < 3.2.0"]},{"certainty":"source_listed","source_ids":["sr-5f938f5ba7ab709488043833808788ff"],"technology":"SixLabors.ImageSharp","known_exclusions":[],"conditions_summary":"### Summary\n\n`SixLabors.ImageSharp` 4.1.1 can spend an attacker-controlled duration decoding a\nsmall malformed BigTIFF. The BigTIFF IFD entry-count field is 64-bit. The reader\niterates once per declared entry, but when fewer than 20 bytes remain for an entry,\nthe entry read returns without advancing. A 24-byte input can therefore run billions\nof iterations without consuming input.\n\nOne decoder invocation occupied one executing thread for more than five seconds in\nthe tested environment. This report makes no worker-pool exhaustion claim.\n\n### Affected package and versions\n\n- Package: `SixLabors.ImageSharp` (NuGet)\n- Affected range: `>= 2.0.0, <= 4.1.1`\n- Commit `0815358f9202a78bc7f3b83e19282dc3654b500f` corresponds to release **v4.1.1**.\n\nBigTIFF decoding and the unbounded `ReadValues64` loop first appear in v2.0.0. Every release tag from v2.0.0 through v4.1.1 retains that loop without constraining the entry count or terminating when a truncated entry makes no progress. The 24-byte PoC exceeded the five-second timeout on published v2.0.0 and v4.1.1; the one-entry control returned promptly on both.\n### Details\n\n[`ReadValues64`](https://github.com/SixLabors/ImageSharp/blob/0815358f920","public_affected_ranges":[">= 4.0.0, < 4.1.2"]}],"null_published_at":"2026-10-31T22:27:09.625Z","source_updated_at":"2026-10-26T14:20:10.000Z","source_disclosed_at":"2026-10-07T20:24:32.000Z","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"}