Improper access control in Pegasystems Pega Browser Extension
Priority LOW 26CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-284.
Summary
A native messaging host vulnerability in Pega Browser Extension (PBE) affects users of all versions of Pega Robotic Automation who have installed Pega Browser Extension. A bad actor could create a website that contains malicious code that targets PBE. The vulnerability could occur if a user navigates to this website. The malicious website could then present an unexpected message box.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00271 19th percentileScored 2026-11-07
Fix Fixed Pega Browser Extension (PBE) (Pegasystems): 3.1.45
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Pegasystems | Pega Browser Extension (PBE) | before 3.1.45 | 3.1.45 | Patch available | CNA |
- Pega Browser Extension (PBE) VendorPegasystems Affected before 3.1.45 Fixed in 3.1.45 Patch available CNA
Remediation
- Fix · CNA Pega Browser Extension (PBE) (Pegasystems) Fixed in 3.1.45
Timeline
- 2026-10-02 Threatist record created from CVE-2026-1079
- 2026-10-03 Alias added: GHSA-5f74-cm8j-hpf8
References
More Pegasystems vulnerabilities
- TI-2021-09101 Improper authentication in Pegasystems Pega Infinity CVSS 3.1CRITICAL 9.8
- TI-2022-08033 Deserialization of untrusted data in Pegasystems Pega Infinity CVSS 3.1CRITICAL 9.8
- TI-2023-15393 Pega platform clients who are using versions 6.1 through 7.3.1 may be utilizing default credentials CVSS 3.1CRITICAL 9.8
- TI-2019-12313 Pega Platform 8.2.1 allows LDAP injection because a username can contain a * character… CVSS 3.1CRITICAL 9.8
- TI-2020-12137 pyActivity in Pega Platform 8.4.0.237 has a security misconfiguration that leads to an… CVSS 3.1CRITICAL 9.8
- TI-2026-11602 Pega Platform versions 7.1.0 through 25.1.2 are affected by an improper validation of… CVSS 4.0HIGH 8.8
Sources
- CVE-2026-1079 · CVE Program
- CVE-2026-1079 · NVD
- FIRST EPSS
- GHSA-5f74-cm8j-hpf8 · GitHub Advisory Database · CC BY 4.0
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