CVE-2026-34626: medium-severity vulnerability in Adobe Acrobat 2024
Acrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.3epss 0.3%
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Related CVEs — Adobe Acrobat 2024
In the same product, most dangerous first.
CVE-2026-34621HIGHAcrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)EPSS 7.2%KEVCVE-2020-29075HIGHPDF Injection BlackHat TalkEPSS 7.9%CVE-2026-81994HIGHAcrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)EPSS 0.6%CVE-2026-34622HIGHAcrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)EPSS 0.4%CVE-2026-81989HIGHAcrobat Reader | Use After Free (CWE-416)EPSS 0.4%CVE-2026-81990HIGHAcrobat Reader | Use After Free (CWE-416)EPSS 0.4%