جزئیات آسیبپذیری
CVE-2026-77467
Lychee: A single 383-byte PDF causes ~184 seconds of CPU consumption in the real processing path
شرح رسمی (انگلیسی)
Lychee is a free, open-source photo-management tool. Prior to 7.7.0, Lychee enables ImageMagick PDF support with Ghostscript but does not apply an effective pre-render limit to PDF page dimensions in ImagickHandler::loadPdf(). An authenticated user who can upload a small PDF with an oversized /MediaBox can cause Imagick::readImage() to consume substantial CPU before failing to produce an image. When QUEUE_CONNECTION selects synchronous processing the request can occupy a web worker, while the official asynchronous Docker configuration can clog the shared image-processing queue and delay other work. The advisory did not identify a Ghostscript sandbox escape. This issue is fixed in version 7.7.0.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 7.1بالا | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
محصولات آسیبپذیر
| فروشنده | محصول | نسخهها | منبع |
|---|---|---|---|
| LycheeOrg | Lychee | < 7.7.0 | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۴- https://github.com/LycheeOrg/Lychee/pull/4511 x_refsource_MISC
- https://github.com/LycheeOrg/Lychee/commit/1e92846af4c2d259a225cf4517de17efba04f945 x_refsource_MISC
- https://github.com/LycheeOrg/Lychee/releases/tag/v7.7.0 x_refsource_MISC
- https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-6736-fhxv-3p79 x_refsource_CONFIRM
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۷/۲۳
- آخرین بهروزرسانی
- ۱۴۰۵/۰۷/۲۸
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- GitHub_M
پیشبینی بهرهبرداری (EPSS)
ارزیابی SSVC (CISA)
- قابل خودکارسازی
- خیر
- وضعیت بهرهبرداری
- اثبات مفهوم
- اثر فنی
- جزئی
ضعفها (CWE)
- CWE-400Uncontrolled Resource Consumption
- CWE-770Allocation of Resources Without Limits or Throttling