DEBIAN-CVE-2026-22691

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Source
https://security-tracker.debian.org/tracker/CVE-2026-22691
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22691.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-22691
Upstream
Published
2026-01-10T05:16:08.680Z
Modified
2026-01-23T11:16:19.936758Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

pypdf is a free and open-source pure-python PDF library. Prior to version 6.6.0, pypdf has possible long runtimes for malformed startxref. An attacker who uses this vulnerability can craft a PDF which leads to possibly long runtimes for invalid startxref entries. When rebuilding the cross-reference table, PDF files with lots of whitespace characters become problematic. Only the non-strict reading mode is affected. Only the non-strict reading mode is affected. This issue has been patched in version 6.6.0.

References

Affected packages

Debian:12 / pypdf

Package

Name
pypdf
Purl
pkg:deb/debian/pypdf?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.4.1-1
3.4.1-1+deb12u1
3.17.4-1

4.*

4.0.0-1~exp1
4.0.0-1
4.0.1-1
4.0.2-1
4.1.0-1
4.2.0-1
4.3.1-1

5.*

5.4.0-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22691.json"

Debian:13 / pypdf

Package

Name
pypdf
Purl
pkg:deb/debian/pypdf?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.4.0-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22691.json"

Debian:14 / pypdf

Package

Name
pypdf
Purl
pkg:deb/debian/pypdf?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.4.0-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22691.json"

Debian:11 / pypdf2

Package

Name
pypdf2
Purl
pkg:deb/debian/pypdf2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.26.0-4
1.26.0-4+deb11u1
1.27.9-1
1.27.12-1

2.*

2.0.0-1
2.4.1-1
2.4.2-1
2.6.0-1
2.8.1-1
2.9.0-1
2.10.0-1
2.10.2-1
2.10.3-1
2.10.4-1
2.10.5-1
2.10.7-1
2.10.9-1
2.11.0-1
2.11.1-1
2.11.2-1
2.12.1-1
2.12.1-2
2.12.1-3
2.12.1-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22691.json"

Debian:12 / pypdf2

Package

Name
pypdf2
Purl
pkg:deb/debian/pypdf2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.12.1-3
2.12.1-3+deb12u1
2.12.1-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22691.json"