DEBIAN-CVE-2026-49477

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Source
https://security-tracker.debian.org/tracker/CVE-2026-49477
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49477.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-49477
Upstream
Published
2026-07-14T21:17:02Z
Modified
2026-09-01T16:06:48Z
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

Soup Sieve is a CSS selector library designed to be used with Beautiful Soup 4. Prior to 2.8.4, the CSS selector parser in soupsieve contains a regular expression vulnerable to catastrophic backtracking when processing an attribute selector with an unterminated quoted value in soupsieve/css_parser.py, allowing an attacker who can supply untrusted CSS selector strings to soupsieve.compile() or Beautiful Soup .select() / .select_one() to cause CPU exhaustion and denial of service. This issue is fixed in version 2.8.4.

References

Affected packages

Debian:12 / soupsieve

Package

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

Affected ranges

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

Affected versions

2.*
2.3.2-1
2.4-1
2.4.1-1
2.4.1-2
2.5-1
2.6-1
2.7-1
2.7-2
2.8.1-1
2.8.3-1
2.8.4-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49477.json"

Debian:13 / soupsieve

Package

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

Affected ranges

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

Affected versions

2.*
2.7-1
2.7-2
2.8.1-1
2.8.3-1
2.8.4-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49477.json"

Debian:14 / soupsieve

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.8.4-1

Affected versions

2.*
2.7-1
2.7-2
2.8.1-1
2.8.3-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49477.json"