DEBIAN-CVE-2026-79591

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Source
https://security-tracker.debian.org/tracker/CVE-2026-79591
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79591.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-79591
Upstream
  • CVE-2026-79591
Published
2026-09-10T21:17:46Z
Modified
2026-09-23T09:00:10Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A heap-buffer-overflow and use-after-free vulnerability exists in the xls_getCSS() function of libxls 1.6.3 due to insufficient validation of a file-controlled font index.

References

Affected packages

Debian:12 / r-cran-readxl

Package

Name
r-cran-readxl
Purl
pkg:deb/debian/r-cran-readxl?arch=source&distro=bookworm

Affected ranges

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

Affected versions

1.*
1.4.2-1
1.4.3-1
1.4.4-1
1.4.5-1
1.5.0-1
1.5.0.1-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79591.json"

Debian:13 / r-cran-readxl

Package

Name
r-cran-readxl
Purl
pkg:deb/debian/r-cran-readxl?arch=source&distro=trixie

Affected ranges

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

Affected versions

1.*
1.4.5-1
1.5.0-1
1.5.0.1-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79591.json"

Debian:14 / r-cran-readxl

Package

Name
r-cran-readxl
Purl
pkg:deb/debian/r-cran-readxl?arch=source&distro=forky

Affected ranges

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

Affected versions

1.*
1.4.5-1
1.5.0-1
1.5.0.1-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79591.json"