Pillow: Quadratic GIF comment copying during save
影響: pip:pillow >= 9.2.0, < 13.0.0 → 13.0.0
On Pillow 12.3.0 and upstream main (ad277e2761b489681e71b51e91367d46b0ceabb9), a GIF with a long comment makes _get_global_header() copy portions of the comment repeatedly when saving, including comments carried over from untrusted images. I suggest provisional Moderate severity for crafted-image CPU denial of service, with CVSS-B 6.9 assuming a network service automatically opens unauthenticated uploads and they are resaved as GIFs; impact depends on input-size, concurrency, and worker CPU lim…
Read on GitHub Advisory Database
| CVE | CVE-2026-112891 |
|---|---|
| Source | GitHub Advisory Database |
| Fetched | 10/22/2026, 05:42 AM |
| Data | Markdown JSON |
On 10/22/2026, 05:38 AM, GitHub Advisory Database published "Pillow: Quadratic GIF comment copying during save" (type: Advisory). Severity is "Medium" (medium). Related technologies: Python. CVE: CVE-2026-112891.