DEBIAN-CVE-2026-84305
sqlparse is a non-validating SQL parser module for Python. Prior to 0.6.0, sqlparse.format(sql, reindent=True) and sqlformat --reindent route attacker-controlled parenthesized tuple lists through ReindentFilter._get_offset() in sqlparse/filters/reindent.py, where _flatten_up_to_token() repeatedly rebuilds and joins the statement prefix. Thousands of offset calculations walk an expanding token tree, producing quadratic CPU consumption for inputs that remain below MAX_GROUPING_TOKENS and causing request delays, reduced throughput, or worker starvation. This issue is fixed in version 0.6.0.
DEBIAN-CVE-2026-84305
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-2026-84305
sqlparse
Source reference: /affected/0/package/name
- Affected versions
- 0.4.2-1
Source reference:
/affected/0/versions0.4.2-1+deb12u1Source reference:
/affected/0/versions0.4.4-1Source reference:
/affected/0/versions0.5.0-1Source reference:
/affected/0/versions0.5.1-1Source reference:
/affected/0/versions0.5.1-2Source reference:
/affected/0/versions0.5.2-1Source reference:
/affected/0/versions0.5.3-1Source reference:
/affected/0/versions0.5.4-1Source reference:
/affected/0/versions0.5.5-1Source reference:
/affected/0/versions0.5.5-2Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
sqlparse
Source reference: /affected/1/package/name
- Affected versions
- 0.5.3-1
Source reference:
/affected/1/versions0.5.4-1Source reference:
/affected/1/versions0.5.5-1Source reference:
/affected/1/versions0.5.5-2Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
sqlparse
Source reference: /affected/2/package/name
- Affected versions
- 0.5.3-1
Source reference:
/affected/2/versions0.5.4-1Source reference:
/affected/2/versions0.5.5-1Source reference:
/affected/2/versions0.5.5-2Source reference:
/affected/2/versions - Fixed versions
- Not stated in this record
- 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": "sqlparse",
"purl": "pkg:deb/debian/sqlparse?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"0.4.2-1",
"0.4.2-1+deb12u1",
"0.4.4-1",
"0.5.0-1",
"0.5.1-1",
"0.5.1-2",
"0.5.2-1",
"0.5.3-1",
"0.5.4-1",
"0.5.5-1",
"0.5.5-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84305.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "sqlparse",
"purl": "pkg:deb/debian/sqlparse?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"0.5.3-1",
"0.5.4-1",
"0.5.5-1",
"0.5.5-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84305.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "sqlparse",
"purl": "pkg:deb/debian/sqlparse?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"0.5.3-1",
"0.5.4-1",
"0.5.5-1",
"0.5.5-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84305.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58401 · Revision 1
- Added to Heist Feed
- Publisher date