Vulnerability · Published Apr 14, 2026 · Assigned by adobe

CVE-2026-34626Acrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)

Medium 6.3

In plain English

A medium-severity prototype pollution in Acrobat 2024 from Adobe. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.3%top 72.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Adobe	Acrobat DC	0 – through 26.001.21411
Adobe	Acrobat Reader DC	0 – through 26.001.21411
Adobe	Acrobat 2024	0 – through 24.001.30362 (Win), 24.001.30360 (Mac)

Weakness: CWE-1321 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

References

https://helpx.adobe.com/security/products/acrobat/apsb26-44.html vendor-advisory