DEBIAN-CVE-2026-14741
HTTP::Date versions before 6.08 for Perl allow CPU exhaustion via polynomial regex backtracking in parse_date. parse_date() matches the date string against a chain of alternative regexes, and str2time() delegates to it. Several of these patterns place unbounded quantifiers next to each other before a trailing `\s*$` anchor. A valid date prefix followed by a long interior run of digits, letters, or whitespace and a single trailing byte that defeats the final match forces the engine to repartition the run, giving polynomial (about quadratic) backtracking. A header value of a few tens of kilobytes runs for tens of seconds of CPU. HTTP::Date parses timestamps such as HTTP `Date`, `Expires`, and `Last-Modified` headers, which commonly originate from untrusted sources. Any caller that passes an untrusted date header to str2time() or parse_date() can be driven to consume unbounded CPU, a denial of service.
DEBIAN-CVE-2026-14741
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-14741
libhttp-date-perl
Source reference: /affected/0/package/name
- Affected versions
- 6.05-2
Source reference:
/affected/0/versions6.06-1Source reference:
/affected/0/versions6.07-1Source reference:
/affected/0/versions6.08-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
libhttp-date-perl
Source reference: /affected/1/package/name
- Affected versions
- 6.06-1
Source reference:
/affected/1/versions6.07-1Source reference:
/affected/1/versions6.08-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
libhttp-date-perl
Source reference: /affected/2/package/name
- Affected versions
- 6.06-1
Source reference:
/affected/2/versions6.07-1Source reference:
/affected/2/versions - Fixed versions
- 6.08-1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libhttp-date-perl",
"purl": "pkg:deb/debian/libhttp-date-perl?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"6.05-2",
"6.06-1",
"6.07-1",
"6.08-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14741.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libhttp-date-perl",
"purl": "pkg:deb/debian/libhttp-date-perl?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"6.06-1",
"6.07-1",
"6.08-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14741.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "6.08-1"
}
]
}
],
"package": {
"name": "libhttp-date-perl",
"purl": "pkg:deb/debian/libhttp-date-perl?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"6.06-1",
"6.07-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14741.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56124 · Revision 1
- Added to Heist Feed
- Publisher date