DEBIAN-CVE-2026-77220

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Source
https://security-tracker.debian.org/tracker/CVE-2026-77220
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-77220.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-77220
Upstream
Published
2026-08-21T21:17:06Z
Modified
2026-09-14T17:03:34Z
Severity
  • 7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

PDFio before 1.6.5 contains a dangling pointer vulnerability in the dictionary string-formatting function that stores a pointer to a stack-local buffer in the document dictionary without copying the string value. In multi-threaded or pooled-request environments, attackers or concurrent users can trigger stack memory reuse across requests, causing cross-tenant document content corruption by silently overwriting one caller's dictionary string values with another caller's data.

References

Affected packages

Debian:12 / ippsample

Package

Name
ippsample
Purl
pkg:deb/debian/ippsample?arch=source&distro=bookworm

Affected ranges

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

Affected versions

0.*
0.0~git20220607.72f89b3-1
0.0.0~git20220215.f365352-1
0.0.0~git20220215.f365352-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-77220.json"

Debian:14 / ippsample

Package

Name
ippsample
Purl
pkg:deb/debian/ippsample?arch=source&distro=forky

Affected ranges

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

Affected versions

0.*
0.0~git20210916.53e4740-1
0.0~git20210916.53e4740-2
0.0~git20211022.c75af30-1
0.0~git20211022.c75af30-2
0.0~git20220215.f365352-1
0.0~git20220607.72f89b3-1
0.0.0~git20220215.f365352-1
0.0.0~git20220215.f365352-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-77220.json"

Debian:14 / pdfio

Package

Name
pdfio
Purl
pkg:deb/debian/pdfio?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.6.5+dfsg-1

Affected versions

1.*
1.5.1+dfsg-1
1.6.1+dfsg-1
1.6.1+dfsg-2
1.6.1+dfsg-3
1.6.2+dfsg-1
1.6.3+dfsg-1
1.6.3+dfsg-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-77220.json"