CVE-2026-34626
Low
No strong exploitation signal.
CVSS base
6.3
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
EPSS — probability of exploitation (30 days)
0.3%
27.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-1321
Published 2026-04-14 · modified 2026-08-28
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | R | Required |
| Scope | C | Changed |
| Confidentiality | H | High |
| Integrity | N | None |
| Availability | N | None |
Timeline
- 2026-04-14 — Published (NVD)
- 2026-08-28 — Last modified (NVD)
Description
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.