Vulnerability Intelligence Report
Acrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)
CVE-2026-34622
Acrobat Reader versions 26.001.21411, 24.001.30360, 24.001.30362 and earlier are affected by an Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
No Active Exploit Signals
CVSS Base Score
8.6
HIGH
Exploitability:1.9
Impact Score:6.1
Temporal Score:8.6
EPSS Probability:0.42%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
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Weaknesses (CWE)
CWE-1321 ↗Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Adobe | Acrobat DC | 0 <= 26.001.21411 (affected), 26.001.21431 (unaffected) |
| Adobe | Acrobat Reader DC | 0 <= 26.001.21411 (affected), 26.001.21431 (unaffected) |
| Adobe | Acrobat 2024 | 0 <= 24.001.30362 (Win), 24.001.30360 (Mac) (affected), 24.001.30365 (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.419%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Adobe Systems Incorporated · Vendor · USA |
| Reserved | 2026-03-30T17:30:36 |
| Published | 2026-04-14T16:18:05 |
| Patch Date | 2026-04-14 |
| Last Updated | 2026-08-27T22:15:55 |
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