SB20260925240 - Multiple vulnerabilities in IBM DataStage on Cloud Pak for Data
Published: September 25, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 vulnerabilities.
1) Insecure Temporary File (CVE-ID: CVE-2026-25645)
CWE-ID: CWE-377 - Insecure Temporary File
CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to overwrite or substitute extracted files.
The vulnerability exists due to insecure temporary file handling in requests.utils.extract_zipped_paths() when extracting files from zip archives into the system temporary directory. A local user can pre-create a malicious file to overwrite or substitute extracted files.
Only applications that call extract_zipped_paths() directly are affected. User interaction is required to process a crafted zip archive.
2) POP3 command injection (CVE-ID: CVE-2025-15367)
CWE-ID: CWE-77 - Command injection
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to execute arbitrary POP3 commands.
The vulnerability exists due to insufficient input validation. A remote attacker can pass specially crafted data to the application and execute arbitrary POP3 commands on the server.
3) IMAP command injection (CVE-ID: CVE-2025-15366)
CWE-ID: CWE-77 - Command injection
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to execute arbitrary IMAP commands.
The vulnerability exists due to insufficient input validation. A remote attacker can pass specially crafted data to the application and execute arbitrary IMAP commands.
4) Integer underflow (CVE-ID: CVE-2026-34165)
CWE-ID: CWE-191 - Integer underflow
CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to integer underflow in .idx file processing when parsing a crafted .idx file. A local user can create or alter an .idx file in the local repository's .git directory to cause a denial of service.
User interaction is required.
5) Race condition (CVE-ID: CVE-2025-61730)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: 2.3 [CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N]
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to a race condition when handling multiple messages during TLS 1.3 handshake. A remote attacker with ability to inject messages during the handshake can gain access to sensitive information.
6) Improper validation of integrity check value (CVE-ID: CVE-2026-25934)
CWE-ID: CWE-354 - Improper Validation of Integrity Check Value
CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause integrity issues by supplying corrupted repository data.
The vulnerability exists due to improper validation of integrity check values in .pack and .idx file handling when processing fetched packfiles and generated pack indexes. A remote attacker can provide corrupted repository data to cause integrity issues by making the application consume corrupted files and trigger unexpected errors.
User interaction is required for a client to fetch and process repository data.
Remediation
Install update from vendor's website.