DEBIAN-CVE-2026-42198
pgjdbc is an open source postgresql JDBC Driver. From version 42.2.0 to before version 42.7.11, pgjdbc is vulnerable to a client-side denial of service during SCRAM-SHA-256 authentication. A malicious server can instruct the driver to perform SCRAM authentication with a very large iteration count. With a large enough value, the client spends an unbounded amount of CPU time inside PBKDF2 before authentication can fail. A single attempt ties up a CPU core. Repeated or concurrent attempts exhaust client CPU and can wedge connection pools. In affected versions, loginTimeout did not fully mitigate this problem. When loginTimeout expired, the caller could stop waiting, but the worker thread performing the connection attempt could continue running and burning CPU inside the SCRAM PBKDF2 computation. This issue has been patched in version 42.7.11.
DEBIAN-CVE-2026-42198
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-2026-42198
libpgjava
Source reference: /affected/0/package/name
- Affected versions
- 42.5.4-1
Source reference:
/affected/0/versions42.5.5-0+deb12u1Source reference:
/affected/0/versions42.6.0-1Source reference:
/affected/0/versions42.6.0-2Source reference:
/affected/0/versions42.7.0-1Source reference:
/affected/0/versions42.7.1-1Source reference:
/affected/0/versions42.7.10-1Source reference:
/affected/0/versions42.7.11-1Source reference:
/affected/0/versions42.7.12-1Source reference:
/affected/0/versions42.7.13-1Source reference:
/affected/0/versions42.7.2-1Source reference:
/affected/0/versions42.7.3-1Source reference:
/affected/0/versions42.7.3-2Source reference:
/affected/0/versions42.7.5-1Source reference:
/affected/0/versions42.7.5-2Source reference:
/affected/0/versions42.7.6-1Source reference:
/affected/0/versions42.7.7-1Source reference:
/affected/0/versions42.7.7-2Source reference:
/affected/0/versions42.7.8-1Source reference:
/affected/0/versions42.7.8-2Source reference:
/affected/0/versions42.7.9-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
libpgjava
Source reference: /affected/1/package/name
- Affected versions
- 42.7.10-1
Source reference:
/affected/1/versions42.7.11-1Source reference:
/affected/1/versions42.7.12-1Source reference:
/affected/1/versions42.7.13-1Source reference:
/affected/1/versions42.7.7-1Source reference:
/affected/1/versions42.7.7-2Source reference:
/affected/1/versions42.7.8-1Source reference:
/affected/1/versions42.7.8-2Source reference:
/affected/1/versions42.7.9-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
libpgjava
Source reference: /affected/2/package/name
- Affected versions
- 42.7.10-1
Source reference:
/affected/2/versions42.7.7-1Source reference:
/affected/2/versions42.7.7-2Source reference:
/affected/2/versions42.7.8-1Source reference:
/affected/2/versions42.7.8-2Source reference:
/affected/2/versions42.7.9-1Source reference:
/affected/2/versions - Fixed versions
- 42.7.11-1
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": "libpgjava",
"purl": "pkg:deb/debian/libpgjava?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"42.5.4-1",
"42.5.5-0+deb12u1",
"42.6.0-1",
"42.6.0-2",
"42.7.0-1",
"42.7.1-1",
"42.7.10-1",
"42.7.11-1",
"42.7.12-1",
"42.7.13-1",
"42.7.2-1",
"42.7.3-1",
"42.7.3-2",
"42.7.5-1",
"42.7.5-2",
"42.7.6-1",
"42.7.7-1",
"42.7.7-2",
"42.7.8-1",
"42.7.8-2",
"42.7.9-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42198.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libpgjava",
"purl": "pkg:deb/debian/libpgjava?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"42.7.10-1",
"42.7.11-1",
"42.7.12-1",
"42.7.13-1",
"42.7.7-1",
"42.7.7-2",
"42.7.8-1",
"42.7.8-2",
"42.7.9-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42198.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "42.7.11-1"
}
]
}
],
"package": {
"name": "libpgjava",
"purl": "pkg:deb/debian/libpgjava?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"42.7.10-1",
"42.7.7-1",
"42.7.7-2",
"42.7.8-1",
"42.7.8-2",
"42.7.9-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42198.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56968 · Revision 1
- Added to Heist Feed
- Publisher date