{"items":[{"id":"NVI-00011707","kind":"vulnerability","title":"ImageSharp: ICC LUT16 output channel count can write beyond Vector4","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-ffp7-56pq-64mr","CVE-2026-106112"],"plain_summary":"GitHub lists this reviewed advisory for 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-08eb4ef7fe797175c8a3fce9751af2f6"],"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":"2026-10-07T20:24:38.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-08eb4ef7fe797175c8a3fce9751af2f6"}],"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-08eb4ef7fe797175c8a3fce9751af2f6","url":"https://github.com/advisories/GHSA-ffp7-56pq-64mr","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-ffp7-56pq-64mr","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:46.232Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-08eb4ef7fe797175c8a3fce9751af2f6"],"technology":"SixLabors.ImageSharp","known_exclusions":[],"conditions_summary":"### Summary\n\nWhen ICC conversion is enabled, a malformed embedded ICC LUT16 profile with\nmore than four output channels can corrupt memory during ImageSharp color\nconversion. The ICC parser accepts up to 15 CLUT output channels, while the\nconversion implementation stores intermediate values in `Vector4`.\n\n### Affected package and versions\n\n- Package: `SixLabors.ImageSharp` (NuGet)\n- Affected published releases: **4.0.0, 4.1.0, and 4.1.1**\n- Affected range: `>= 4.0.0, <= 4.1.1`\n- Commit `0815358f9202a78bc7f3b83e19282dc3654b500f` corresponds to release **v4.1.1**.\n\nThe reproduced `ColorProfileHandling.Convert` path and the unsafe `Vector4` LUT operations are present in v4.0.0 and unchanged through v4.1.1. The three-output control succeeds on all three published 4.x releases; the fifteen-output exploit terminates all three.\n\n### Details\n\n`IccClut` accepts one through fifteen input and output channels. In the\nreproduced `A2B0` LUT16 path, an attacker-controlled profile declares three\ninput channels and fifteen output channels. [`ClutCalculator.Calculate`](https://github.com/SixLabors/ImageSharp/blob/0815358f9202a78bc7f3b83e19282dc3654b500f/src/ImageSharp/ColorProfiles/Icc/Calculators/C","public_affected_ranges":[">= 4.0.0, <= 4.1.1"]}],"null_published_at":"2026-11-01T01:03:56.587Z","source_updated_at":"2026-10-07T20:24:38.000Z","source_disclosed_at":"2026-10-07T20:24:37.000Z","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":"2026-11-01T00:58:46.232Z"}],"next_cursor":null,"snapshot_revision":"42594"}