SB2026081816 - Multiple vulnerabilities in IBM QRadar Data Synchronization App
Published: August 18, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 25 vulnerabilities.
1) Inefficient regular expression complexity (CVE-ID: CVE-2026-26996)
CWE-ID: CWE-1333 - Inefficient Regular Expression Complexity
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient input validation when processing untrusted input with a regular expressions within "minimatch" function. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
2) Inefficient regular expression complexity (CVE-ID: CVE-2026-27904)
CWE-ID: CWE-1333 - Inefficient Regular Expression Complexity
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient input validation when processing untrusted input with a regular expressions. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
3) Race condition (CVE-ID: CVE-2026-23950)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: 5.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a race condition in Path Reservations via Unicode Sharp-S (ß) Collisions on macOS APFS. A remote attacker can trick the victim into using a specially crafted archive to bypass the library's internal concurrency safeguards and perform Symlink Poisoning attacks.
4) Inefficient regular expression complexity (CVE-ID: CVE-2026-4867)
CWE-ID: CWE-1333 - Inefficient Regular Expression Complexity
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a bad regular expression is generated any time you have three or more parameters within a single segment, separated by something that is not a period (.). A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
5) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2024-29415)
CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:N/SA:N]
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input within the isPublic() function when handling certain IP addresses, such as 127.1, 01200034567, 012.1.2.3, 000:0:0000::01, and ::fFFf:127.0.0.1. A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.
Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.
Note, the vulnerability exists due to incomplete fix for #VU86944 (CVE-2023-42282).
6) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2023-42282)
CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:N/SA:N]
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input within the isPublic() function. A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.
Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.
7) Resource exhaustion (CVE-ID: CVE-2025-15284)
CWE-ID: CWE-400 - Resource exhaustion
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the arrayLimit option does not enforce limits for bracket notation (a[]=1&a[]=2). A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
8) Memory leak (CVE-ID: CVE-2025-23165)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak in ReadFileUtf8 caused by a corrupted pointer. A remote attacker can force the application to leak memory and perform denial of service attack.
9) Path traversal (CVE-ID: CVE-2026-23745)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in src/unpack.ts within the [HARDLINK] and [SYMLINK] methods. A remote attacker can send a specially crafted HTTP request and read/overwrite arbitrary files on the system.
10) Path traversal (CVE-ID: CVE-2026-24842)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in lib/unpack.js. A remote attacker can send a specially crafted HTTP request and read or overwrite arbitrary files on the system.
11) Prototype pollution (CVE-ID: CVE-2025-13465)
CWE-ID: CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes (\'Prototype Pollution\')
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to alter application's behavior.
The vulnerability exists due to improper input validation within the in the _.unset and _.omit functions. A remote attacker can pass specially crafted input to the application and delete methods from global prototypes.
12) Input validation error (CVE-ID: CVE-2026-2391)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due the arrayLimit option in qs does not enforce limits for comma-separated values when comma: true is enabled. A remote attacker can pass overly large string to the application and consume all available memory resources, leading to a denial of service condition.
13) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2025-59436)
CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)
CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N]
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to IP address value 017700000001 is improperly categorized as globally routable via isPublic. A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.
Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.
14) Incorrect Control Flow Scoping (CVE-ID: CVE-2026-3449)
CWE-ID: CWE-705 - Incorrect Control Flow Scoping
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to Incorrect Control Flow Scoping in promise resolving when AbortSignal option is used. The Promise remains in a permanently pending state after the signal is aborted, causing any await or .then() usage to hang indefinitely. A local user can trigger the vulnerability to cause a control-flow leak that can lead to stalled requests, blocked workers, or degraded application availability.
15) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2025-59437)
CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)
CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N]
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to IP address value 0 is improperly categorized as globally routable via isPublic. A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.
Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.
16) Missing Release of Resource after Effective Lifetime (CVE-ID: CVE-2026-2359)
CWE-ID: CWE-772 - Missing Release of Resource after Effective Lifetime
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to missing release of resource after effective lifetime in the file upload handling component when processing a file upload connection that is dropped prematurely. A remote attacker can drop the connection during file upload to cause a denial of service.
The issue can lead to resource exhaustion.
17) Incomplete cleanup (CVE-ID: CVE-2026-3304)
CWE-ID: CWE-459 - Incomplete cleanup
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to incomplete cleanup in multer when handling malformed requests. A remote attacker can send malformed requests to cause a denial of service.
The issue may result in resource exhaustion.
18) Uncontrolled Recursion (CVE-ID: CVE-2026-3520)
CWE-ID: CWE-674 - Uncontrolled Recursion
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled recursion in multer when handling malformed requests. A remote attacker can send a specially crafted request to cause a denial of service.
The issue may result in stack overflow.
19) Inefficient regular expression complexity (CVE-ID: CVE-2026-33671)
CWE-ID: CWE-1333 - Inefficient Regular Expression Complexity
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in extglob quantifier handling when parsing input. A remote attacker can send a specially crafted pattern to cause a denial of service.
20) Prototype pollution (CVE-ID: CVE-2026-33672)
CWE-ID: CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes (\'Prototype Pollution\')
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to execute arbitrary JavaScript code.
The method injection vulnerability affects the `POSIX_REGEX_SOURCE` object. Because the object inherits from `Object.prototype`, specially crafted POSIX bracket expressions (e.g., `[[:constructor:]]`) can reference inherited method names. These methods are implicitly converted to strings and injected into the generated regular expression. This leads to incorrect glob matching behavior (integrity impact), where patterns may match unintended filenames.. A remote attacker can pass specially crafted input to the application and perform prototype pollution, which can result in information disclosure or data manipulation.
21) Path traversal (CVE-ID: CVE-2026-31802)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences. A local user can trick tar (npm) into creating a symlink that points outside the extraction directory by using a drive-relative symlink target such as C:../../../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction.
22) Input validation error (CVE-ID: CVE-2026-33750)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in sequence generation in expand() when parsing a brace pattern with a zero step value. A remote attacker can supply a specially crafted pattern to cause a denial of service.
User interaction is required to process the crafted input.
23) Link following (CVE-ID: CVE-2026-29786)
CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')
CVSSv4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to overwrite arbitrary files on the system.
The vulnerability exists due to insecure handling of hard links inside archives. A remote attacker can supply a specially crafted archive to the application that can overwrite arbitrary files on the system with privileges of the process performing data extraction.
24) Inefficient Algorithmic Complexity (CVE-ID: CVE-2026-27903)
CWE-ID: CWE-407 - Inefficient Algorithmic Complexity
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to inefficient algorithmic complexity in matchOne() when processing glob patterns containing multiple non-adjacent GLOBSTAR segments. A remote attacker can supply a specially crafted glob pattern to cause a denial of service.
The issue is triggered on non-matching input and can stall the Node.js event loop while the recursive call tree is fully explored.
25) Path traversal (CVE-ID: CVE-2026-26960)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences within the tar.extract() function when handling hardlinks inside archives. A remote user can pass a specially crafted archive to the application and read or write files to arbitrary locations on the system.
Remediation
Install update from vendor's website.