DEBIAN-CVE-2026-63209

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Source
https://security-tracker.debian.org/tracker/CVE-2026-63209
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63209.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-63209
Upstream
Published
2026-09-29T15:17:27Z
Modified
2026-10-01T08:47:34Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

compress provides various compression algorithms. Prior to version 1.18.7, a signed integer overflow vulnerability in s2.NewDict() allows an attacker to bypass repeat index validation by supplying a dictionary with a uvarint-encoded repeat value exceeding MaxInt64. When Dict.Encode() is subsequently called, the overflowed negative repeat value causes an out-of-bounds memory access via unsafe.Pointer arithmetic, crashing the process with SIGSEGV. This issue has been patched in version 1.18.7.

References

Affected packages

Debian:12 / golang-github-klauspost-compress

Package

Name
golang-github-klauspost-compress
Purl
pkg:deb/debian/golang-github-klauspost-compress?arch=source&distro=bookworm

Affected ranges

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

Affected versions

1.*
1.15.12+ds1-3
1.17.0+ds1-1~exp1
1.17.0+ds1-1
1.17.2+ds1-1
1.17.7+ds1-1
1.17.9+ds1-1~bpo12+1
1.17.9+ds1-1
1.17.10+ds1-1
1.17.11+ds1-1
1.18.0+ds1-1
1.18.1+ds1-1
1.18.6+ds1-1
1.18.6+ds1-2
1.19.0+ds1-1
1.19.0+ds1-2
1.20.0+ds1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63209.json"

Debian:13 / golang-github-klauspost-compress

Package

Name
golang-github-klauspost-compress
Purl
pkg:deb/debian/golang-github-klauspost-compress?arch=source&distro=trixie

Affected ranges

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

Affected versions

1.*
1.18.0+ds1-1
1.18.1+ds1-1
1.18.6+ds1-1
1.18.6+ds1-2
1.19.0+ds1-1
1.19.0+ds1-2
1.20.0+ds1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63209.json"

Debian:14 / golang-github-klauspost-compress

Package

Name
golang-github-klauspost-compress
Purl
pkg:deb/debian/golang-github-klauspost-compress?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.19.0+ds1-1

Affected versions

1.*
1.18.0+ds1-1
1.18.1+ds1-1
1.18.6+ds1-1
1.18.6+ds1-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63209.json"