GHSA-5HGR-HG42-57JG中危已审查

pypdf: Inefficient decoding of FlateDecode PNG predictor streams

OSV 1.4.0 · github-reviewed · 修改于 2026-06-16 21:46

发布时间

2026-06-16 21:46

GitHub 审查时间

2026-06-16 21:46

NVD 发布时间

—

源文件

advisories/github-reviewed/2026/06/GHSA-5hgr-hg42-57jg/GHSA-5hgr-hg42-57jg.json

公告说明

Impact

An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing a stream which uses the /FlateDecode filter with a PNG predictor.

Patches

This has been fixed in pypdf==6.12.2.

Workarounds

If you cannot upgrade yet, consider applying the changes from PR #3806.

受影响的软件包

PyPI

pypdf

ECOSYSTEM

标识信息

别名 / CVE

CVE-2026-49460

CWE

CWE-407

软件生态

PyPI

扩展资料

暂无扩展资料。

CVSS 评分

CVSS_V4

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

原始 OSV JSON

{
  "id": "GHSA-5hgr-hg42-57jg",
  "aliases": [
    "CVE-2026-49460"
  ],
  "details": "### Impact\nAn attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing a stream which uses the `/FlateDecode` filter with a PNG predictor.\n\n### Patches\nThis has been fixed in [pypdf==6.12.2](https://github.com/py-pdf/pypdf/releases/tag/6.12.2).\n\n### Workarounds\nIf you cannot upgrade yet, consider applying the changes from PR [#3806](https://github.com/py-pdf/pypdf/pull/3806).",
  "summary": "pypdf: Inefficient decoding of FlateDecode PNG predictor streams",
  "affected": [
    {
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.2"
            }
          ]
        }
      ],
      "package": {
        "name": "pypdf",
        "ecosystem": "PyPI"
      }
    }
  ],
  "modified": "2026-06-16T13:46:42Z",
  "severity": [
    {
      "type": "CVSS_V4",
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
    }
  ],
  "published": "2026-06-16T13:46:42Z",
  "references": [
    {
      "url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-5hgr-hg42-57jg",
      "type": "WEB"
    },
    {
      "url": "https://github.com/py-pdf/pypdf/pull/3806",
      "type": "WEB"
    },
    {
      "url": "https://github.com/py-pdf/pypdf",
      "type": "PACKAGE"
    },
    {
      "url": "https://github.com/py-pdf/pypdf/releases/tag/6.12.2",
      "type": "WEB"
    }
  ],
  "schema_version": "1.4.0",
  "database_specific": {
    "cwe_ids": [
      "CWE-407"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "nvd_published_at": null,
    "github_reviewed_at": "2026-06-16T13:46:42Z"
  }
}