DEBIAN-CVE-2026-18503

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Source
https://security-tracker.debian.org/tracker/CVE-2026-18503
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18503.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-18503
Upstream
Published
2026-08-10T14:17:21Z
Modified
2026-09-02T16:00:42Z
Severity
  • 2.4 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:L/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

Attacker-controlled CSV samples can trigger super-linear regular-expression work during dialect sniffing and consume significant CPU when applications pass unbounded input to csv.Sniffer.sniff().

References

Affected packages

Debian:12
pypy3

Package

Name
pypy3
Purl
pkg:deb/debian/pypy3?arch=source&distro=bookworm

Affected ranges

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

Affected versions

7.*
7.3.11+dfsg-2
7.3.11+dfsg-2+deb12u1
7.3.11+dfsg-2+deb12u2
7.3.11+dfsg-2+deb12u3
7.3.12~rc1+dfsg-1
7.3.12~rc2+dfsg-1
7.3.12+dfsg-1
7.3.13+dfsg-1
7.3.14+dfsg-1
7.3.15+dfsg-1
7.3.16+dfsg-1
7.3.16+dfsg-2
7.3.17+dfsg-1
7.3.17+dfsg-2
7.3.17+dfsg-3
7.3.18+dfsg-1
7.3.18+dfsg-2
7.3.19+dfsg-1
7.3.19+dfsg-2
7.3.20+dfsg-1
7.3.20+dfsg-2
7.3.20+dfsg-3
7.3.20+dfsg-4
7.3.21+dfsg-1
7.3.21+dfsg-2
7.3.21+dfsg-3
7.3.21+dfsg-4
7.3.22+dfsg-1
7.3.23+dfsg-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18503.json"
python3.11

Package

Name
python3.11
Purl
pkg:deb/debian/python3.11?arch=source&distro=bookworm

Affected ranges

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

Affected versions

3.*
3.11.2-6
3.11.2-6+deb12u1
3.11.2-6+deb12u2
3.11.2-6+deb12u3
3.11.2-6+deb12u4
3.11.2-6+deb12u5
3.11.2-6+deb12u6
3.11.2-6+deb12u7
3.11.2-6+deb12u8
3.11.3-1
3.11.3-2
3.11.4-1
3.11.5-1
3.11.5-2
3.11.5-3
3.11.6-1
3.11.6-2
3.11.6-3~hurd.2
3.11.6-3
3.11.7-1
3.11.7-2
3.11.8-1
3.11.8-1.1~exp1
3.11.8-1.1~exp2
3.11.8-2
3.11.8-3
3.11.8-3+hurd.1
3.11.9-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18503.json"
Debian:13
pypy3

Package

Name
pypy3
Purl
pkg:deb/debian/pypy3?arch=source&distro=trixie

Affected ranges

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

Affected versions

7.*
7.3.19+dfsg-2
7.3.20+dfsg-1
7.3.20+dfsg-2
7.3.20+dfsg-3
7.3.20+dfsg-4
7.3.21+dfsg-1
7.3.21+dfsg-2
7.3.21+dfsg-3
7.3.21+dfsg-4
7.3.22+dfsg-1
7.3.23+dfsg-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18503.json"
python3.13

Package

Name
python3.13
Purl
pkg:deb/debian/python3.13?arch=source&distro=trixie

Affected ranges

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

Affected versions

3.*
3.13.5-2
3.13.5-2+deb13u1
3.13.5-2+deb13u2
3.13.5-2+deb13u3
3.13.5-2+deb13u4
3.13.6-1
3.13.7-1
3.13.8-1
3.13.9-1
3.13.11-1
3.13.12-1
3.13.14-1
3.13.15-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18503.json"
Debian:14
pypy3

Package

Name
pypy3
Purl
pkg:deb/debian/pypy3?arch=source&distro=forky

Affected ranges

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

Affected versions

7.*
7.3.19+dfsg-2
7.3.20+dfsg-1
7.3.20+dfsg-2
7.3.20+dfsg-3
7.3.20+dfsg-4
7.3.21+dfsg-1
7.3.21+dfsg-2
7.3.21+dfsg-3
7.3.21+dfsg-4
7.3.22+dfsg-1
7.3.23+dfsg-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18503.json"
python3.13

Package

Name
python3.13
Purl
pkg:deb/debian/python3.13?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.13.15-1

Affected versions

3.*
3.13.5-2
3.13.6-1
3.13.7-1
3.13.8-1
3.13.9-1
3.13.11-1
3.13.12-1
3.13.14-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18503.json"
python3.14

Package

Name
python3.14
Purl
pkg:deb/debian/python3.14?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.14.7-1

Affected versions

3.*
3.14.0~a7-1
3.14.0~b1-1
3.14.0~b2-1
3.14.0~b3-1
3.14.0~b4-1
3.14.0~rc1-1
3.14.0~rc2-1
3.14.0~rc3-1
3.14.0-1
3.14.0-2
3.14.0-3
3.14.0-4
3.14.0-5
3.14.2-1
3.14.3-1
3.14.3-2
3.14.3-3
3.14.3-4
3.14.3-5
3.14.4-1
3.14.4-2
3.14.5~rc1-1
3.14.5-1
3.14.6-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18503.json"
python3.15

Package

Name
python3.15
Purl
pkg:deb/debian/python3.15?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.15.0~rc1-1

Affected versions

3.*
3.15.0~a8-1
3.15.0~a8-2
3.15.0~b1-1
3.15.0~b1-2
3.15.0~b1-3
3.15.0~b2-1
3.15.0~b3-1
3.15.0~b4-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18503.json"