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CVE-2026-28804 pypdf: Inefficient decoding of ASCIIHexDecode streams

🗓️ 06 Mar 2026 06:46:28Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 57 Views

CVE-2026-28804: pypdf has inefficient ASCIIHexDecode decoding causing long runtimes; fixed in 6.7.5.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ibm
IBM Security Bulletins
Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in pypdf-6.7.3-py3-none-any.whl
9 Jun 202615:16
–ibm
attackerkb
attackerkb
CVE-2026-28804
6 Mar 202606:46
–attackerkb
bdu_fstec
BDU FSTEC
PyPDF2 Algorithmic Complexity DoS
25 May 202600:00
–bdu_fstec
cgr
Chainguard
CVE-2026-28804 vulnerabilities
5 Mar 202619:18
–cgr
circl
Circl
CVE-2026-28804
6 Mar 202608:00
–circl
cnnvd
CNNVD
pypdf security vulnerability
6 Mar 202600:00
–cnnvd
cve
CVE
CVE-2026-28804
6 Mar 202606:46
–cve
debiancve
Debian CVE
CVE-2026-28804
6 Mar 202606:46
–debiancve
github
Github Security Blog
pypdf vulnerable to inefficient decoding of ASCIIHexDecode streams
2 Mar 202622:03
–github
mend
Mend
CVE-2026-28804
6 Mar 202606:46
–mend
Rows per page
[
  {
    "vendor": "py-pdf",
    "product": "pypdf",
    "versions": [
      {
        "version": "< 6.7.5",
        "status": "affected"
      }
    ]
  }
]

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