dbcve.org
Improper Access ControlWeakness · CWE-284

CVE-2026-0898

CRITICAL · 9.0 CVSS v4.0 Published 2026-03-23
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
97/100
Remediation priority · Urgent
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An arbitrary file-write vulnerability in Pega Browser Extension (PBE) affects Pega Robot Studio developers who are automating Google Chrome and Microsoft Edge using either version 22.1 or R25. This vulnerability does not affect Robot Runtime users. A bad actor could create a website that includes malicious code. The vulnerability may be exploited if a Pega Robot Studio developer is deceived into visiting this website during interrogation mode in Robot Studio.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Arbitrary file-write vulnerability in Pega Browser Extension (PBE) affecting Pega Robot Studio developers automating Chrome or Edge (versions 22.1 and R25). Exploitable through malicious websites when the developer is in interrogation mode, allowing a bad actor to write arbitrary files to the developer's system.

MitigationAvoid visiting untrusted websites during interrogation mode until a patched version of PBE is available; consider restricting browser extension permissions or temporarily disabling the extension when not actively automating.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
Authentication
X
User interaction
P
Scope
X

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Pega Robot Studio version
    Open Pega Robot Studio, go to Help > About Pega Robot Studio, or check the installed application version in Windows Programs and Features
    Affected if The version listed is earlier than 22.1 or R25 (these are patched versions)
  2. Identify Pega Browser Extension version
    Open Chrome or Edge browser, navigate to chrome://extensions or edge://extensions, find the Pega Browser Extension, and note the version number shown
    Affected if The extension version is earlier than the version bundled with Pega Robot Studio 22.1 or R25
  3. Confirm interrogation mode usage
    Check if Pega Robot Studio is currently in or frequently used in Interrogation mode, which allows the extension to interact with web pages for automation
    Affected if Interrogation mode is actively used or was recently used while browsing untrusted websites
  4. Review recent extension activity logs
    Examine Pega Robot Studio logs or Windows Event Viewer for any suspicious file-write events originating from the Pega Browser Extension process
    Affected if Any unexpected file writes or unusual extension activity is observed in logs

A user is affected if they run Pega Robot Studio versions prior to 22.1 or R25 AND use the Pega Browser Extension in interrogation mode while browsing websites.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Avoid visiting untrusted websites during interrogation mode until a patched version of PBE is available; consider restricting browser extension permissions or temporarily disabling the extension when not actively automating.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,088.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2026-0898 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-0898 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data