CVE-2026-34626 json
Acrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)
published 6mo ago modified 14d ago also EUVD-2026-22337
- cvss
- 6.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 27%
- public exploits
- 0
- none known
Summary
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 file system read in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Patch / fix
- Adobe Acrobat DC 26.001.21431
- Adobe Acrobat Reader DC 26.001.21431
- Adobe Acrobat 2024 24.001.30365
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6mo ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.3 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N |
Affected products
- Adobe Acrobat DC
- Adobe Acrobat Reader DC
- Adobe Acrobat 2024
Classification
- Weakness
-
- CWE-1321 Improperly Controlled Modification of Object Prototype Attributes
References
-
helpx.adobe.com
/security/products/acrobat/apsb26-44.html
vendor-advisory
Sources
- CVE List CVE-2026-34626
- NVD CVE-2026-34626
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