CVE-2026-34621
Acrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)
At a glance
- Source
- NVD
- EPSS
- EPSS 7.23 % · percentile 94 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- adobe
- NVD status
- Analyzed
Description
Acrobat Reader versions 24.001.30356, 26.001.21367 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.
Weaknesses (CWE)
- CWE-1321 — Improperly Controlled Modification of Object Prototype Attributes
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.6 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H | adobe |
| CVSS 3.1 | HIGH 8.6 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H | NVD · psirt@adobe.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-21675
- GCVE · GCVE-0-2026-34621
CERT-FR advisories
- CERTFR-2026-AVI-0429 — Vulnérabilité dans Adobe Acrobat · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*< 26.001.21411cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*< 26.001.21411cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*≥ 24.0.0 < 24.001.30362cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*≥ 24.0.0 < 24.001.30360
Affected products
| Product | Versions |
|---|---|
| Adobe · Acrobat DC | affected 0 ≤ 26.001.21367 ; unaffected 26.001.21411 |
| Adobe · Acrobat Reader DC | affected 0 ≤ 26.001.21367 ; unaffected 26.001.21411 |
| Adobe · Acrobat 2024 | affected 0 ≤ 24.001.30356 ; unaffected 24.001.30362 (Win), 24.001.30360 (Mac) |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| CISA Known Exploited Vulnerabilities | CC0 1.0 |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |