CVE-2026-49461
pypdf: Possible large memory usage for form XObjects during text extraction
描述
### Impact An attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires extracting the text of a page which contains a form XObject with self-references. ### Patches This has been fixed in [pypdf==6.12.2](https://github.com/py-pdf/pypdf/releases/tag/6.12.2). ### Workarounds If you cannot upgrade yet, consider applying the changes from PR [#3805](https://github.com/py-pdf/pypdf/pull/3805).
如何修補 CVE-2026-49461
要修補 CVE-2026-49461,請將受影響套件升級到下列已修補版本。
- PyPI/pypdf—升級至 6.12.2 或更新版本
CVE-2026-49461 正在被利用嗎?
目前沒有被利用訊號。CVE-2026-49461 既不在 CISA KEV 也沒有最新的 EPSS 分數。
受影響套件(1)
- from 0, < 6.12.2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |