DEBIAN-CVE-2026-5080
Dancer::Session::Abstract versions through 1.3522 for Perl generates session ids insecurely. The session id is generated from summing the character codepoints of the absolute pathname with the process id, the epoch time and calls to the built-in rand() function to return a number between 0 and 999-billion, and concatenating that result three times. The path name might be known or guessed by an attacker, especially for applications known to be written using Dancer with standard installation locations. The epoch time can be guessed by an attacker, and may be leaked in the HTTP header. The process id comes from a small set of numbers, and workers may have sequential process ids. The built-in rand() function is seeded with 32-bits and is considered unsuitable for security applications. Predictable session ids could allow an attacker to gain access to systems.
DEBIAN-CVE-2026-5080
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-2026-5080
libdancer-perl
Source reference: /affected/0/package/name
- Affected versions
- 1.3521+dfsg-1
Source reference:
/affected/0/versions1.3522-1Source reference:
/affected/0/versions1.3522-2Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
libdancer-perl
Source reference: /affected/1/package/name
- Affected versions
- 1.3521+dfsg-1
Source reference:
/affected/1/versions1.3522-1Source reference:
/affected/1/versions1.3522-2Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
libdancer-perl
Source reference: /affected/2/package/name
- Affected versions
- 1.3521+dfsg-1
Source reference:
/affected/2/versions1.3522-1Source reference:
/affected/2/versions - Fixed versions
- 1.3522-2
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": "libdancer-perl",
"purl": "pkg:deb/debian/libdancer-perl?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.3521+dfsg-1",
"1.3522-1",
"1.3522-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5080.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libdancer-perl",
"purl": "pkg:deb/debian/libdancer-perl?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.3521+dfsg-1",
"1.3522-1",
"1.3522-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5080.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.3522-2"
}
]
}
],
"package": {
"name": "libdancer-perl",
"purl": "pkg:deb/debian/libdancer-perl?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.3521+dfsg-1",
"1.3522-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5080.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #57292 · Revision 1
- Added to Heist Feed
- Publisher date