Apache Cassandra: User with MODIFY permission on ALL KEYSPACES can escalate privileges to superuser via unsafe actions (4.0.16 only)
Privilege Defined With Unsafe Actions vulnerability in Apache Cassandra. An user with MODIFY permission ON ALL KEYSPACES can escalate privileges to superuser within a targeted Cassandra cluster via unsafe actions to a system resource. Operators granting data MODIFY permission on all keyspaces on affected versions should review data access rules for potential breaches. This issue affects Apache Cassandra 3.0.30, 3.11.17, 4.0.16, 4.1.7, 5.0.2, but this advisory is only for 4.0.16 because the fix to CVE-2025-23015 was incorrectly applied to 4.0.16, so that version is still affected. Users in the 4.0 series are recommended to upgrade to version 4.0.17 which fixes the issue. Users from 3.0, 3.11, 4.1 and 5.0 series should follow recommendation from CVE-2025-23015.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-26467
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 01:55 UTC · Revision 1
Source evidence
Apache Cassandra: User with MODIFY permission on ALL KEYSPACES can escalate privileges to superuser via unsafe actions (4.0.16 only)
core-osv · Original sourcePublished 25 Aug 2025, 14:06 UTC
Privilege Defined With Unsafe Actions vulnerability in Apache Cassandra. An user with MODIFY permission ON ALL KEYSPACES can escalate privileges to superuser within a targeted Cassandra cluster via unsafe actions to a system resource. Operators granting data MODIFY permission on all keyspaces on affected versions should review data access rules for potential breaches. This issue affects Apache Cassandra 3.0.30, 3.11.17, 4.0.16, 4.1.7, 5.0.2, but this advisory is only for 4.0.16 because the fix to CVE-2025-23015 was incorrectly applied to 4.0.16, so that version is still affected. Users in the 4.0 series are recommended to upgrade to version 4.0.17 which fixes the issue. Users from 3.0, 3.11, 4.1 and 5.0 series should follow recommendation from CVE-2025-23015.
osv:CVE-2025-26467
Complete source record
{
"id": "38d21a6af733d9a3ed8d1caeac6ec44493465a626102ba97315175caf0263937",
"url": "https://osv.dev/vulnerability/CVE-2025-26467",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Apache Cassandra: User with MODIFY permission on ALL KEYSPACES can escalate privileges to superuser via unsafe actions (4.0.16 only)",
"summary": "Privilege Defined With Unsafe Actions vulnerability in Apache Cassandra. An user with MODIFY permission ON ALL KEYSPACES can escalate privileges to superuser within a targeted Cassandra cluster via unsafe actions to a system resource. Operators granting data MODIFY permission on all keyspaces on affected versions should review data access rules for potential breaches. This issue affects Apache Cassandra 3.0.30, 3.11.17, 4.0.16, 4.1.7, 5.0.2, but this advisory is only for 4.0.16 because the fix to CVE-2025-23015 was incorrectly applied to 4.0.16, so that version is still affected. Users in the 4.0 series are recommended to upgrade to version 4.0.17 which fixes the issue. Users from 3.0, 3.11, 4.1 and 5.0 series should follow recommendation from CVE-2025-23015.",
"evidence": "osv:CVE-2025-26467",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2025-26467",
"aliases": [
"BIT-cassandra-2025-26467",
"CVE-2025-26467",
"GHSA-5c4f-pxmx-xcm4"
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"metrics": [
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{
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{
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"versions": [
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"cassandra-3.0.15",
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"cassandra-3.0.10",
"cassandra-3.0.9",
"cassandra-3.0.7",
"cassandra-3.0.6",
"cassandra-3.0.5",
"cassandra-3.0.4",
"cassandra-3.0.3",
"cassandra-3.0.1",
"cassandra-3.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-26467.json"
}
}
],
"modified": "2026-10-28T02:30:48.769850020Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/26xxx/CVE-2025-26467.json",
"https://lists.apache.org/thread/xxj36rr4d6mzyqpld05dn8b9951hfpz7",
"https://nvd.nist.gov/vuln/detail/CVE-2025-26467"
],
"provider_metadata": {
"cwe_ids": [
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],
"cna_assigner": "apache",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
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{
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"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
}
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"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/26xxx/CVE-2025-26467.json"
}
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"related_cves": [
{
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"evidence": "/id"
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"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 517153,
"published_at": "2025-08-25T14:06:28.761+00:00"
}