DEBIAN-CVE-2026-110676
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-110676
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-110676.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-110676
- Upstream
- Published
- 2026-10-19T20:47:38Z
- Modified
- 2026-10-20T05:00:08Z
- Summary
- [none]
- Details
-
Cpanel::JSON::XS versions before 4.80 for Perl allow memory exhaustion by encoding exponent notation as full decimal digits under allow_bignum. With allow_bignum, a JSON number with a fraction or exponent decodes to a Math::BigFloat, which stores the exponent separately and so decodes cheaply. Encoding it untyped or as JSON_TYPE_FLOAT writes the plain decimal form with one digit per unit of exponent. Nothing bounds the exponent, so the 12-byte text [1e30000000] encodes to 30 MB. Untrusted JSON decoded with allow_bignum and encoded again can exhaust memory and CPU.
- References
Affected packages
Debian:12 / libcpanel-json-xs-perl
Package
- Name
- libcpanel-json-xs-perl
- Purl
- pkg:deb/debian/libcpanel-json-xs-perl?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:13 / libcpanel-json-xs-perl
Package
- Name
- libcpanel-json-xs-perl
- Purl
- pkg:deb/debian/libcpanel-json-xs-perl?arch=source&distro=trixie
Debian:14 / libcpanel-json-xs-perl
Package
- Name
- libcpanel-json-xs-perl
- Purl
- pkg:deb/debian/libcpanel-json-xs-perl?arch=source&distro=forky