CVE-2026-48294: Adobe Acrobat PDF Extension (Chrome) versions 26.5.2.2 and earlier are affected by a UXSS-class cross-origin d

Q: How do I fix CVE-2026-48294?

acrobat: upgrade to newer than 26.5.2.2. Exact commands for each OS are on this page.

Q: Is CVE-2026-48294 being exploited?

CVE-2026-48294 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-48294 affect?

CVE-2026-48294 affects acrobat. Severity is high (CVSS 7.4). Adobe Acrobat PDF Extension (Chrome) versions 26.5.2.2 and earlier are affected by a UXSS-class cross-origin data disclosure vulnerability. An attacker could exploit this vulnerability to gain access to data regarding the victim's session.

This month

HIGH 7.4UPGRADE

CVE-2026-48294 is a high-severity flaw (CVSS 7.4) affecting acrobat. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Adobe Acrobat PDF Extension (Chrome) versions 26.5.2.2 and earlier are affected by a UXSS-class cross-origin data disclosure vulnerability. An attacker could exploit this vulnerability to gain access to data regarding the victim's session. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.4 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-06-17
Last modified	2026-10-26

Publisher (CNA): Adobe Systems Incorporated · Vendor: adobe

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-17 10:55 UTCPublished CVE record published
2026-10-26 11:10 UTCUpdated Record last modified

adobe acrobat UPGRADE

Affected: <= 26.5.2.2

Fixed in: newer than 26.5.2.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy acrobat || rpm -q acrobat || acrobat --version

2. UPGRADE to newer than 26.5.2.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade acrobat

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade acrobat

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-48294?

acrobat: upgrade to newer than 26.5.2.2. Exact commands for each OS are on this page.

Is CVE-2026-48294 being exploited?

CVE-2026-48294 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-48294 affect?

CVE-2026-48294 affects acrobat. Severity is high (CVSS 7.4). Adobe Acrobat PDF Extension (Chrome) versions 26.5.2.2 and earlier are affected by a UXSS-class cross-origin data disclosure vulnerability. An attacker could exploit this vulnerability to gain access to data regarding the victim's session.

How urgent is CVE-2026-48294?

Priority 46/100. High severity

Software pages

Google Chrome vulnerabilities · Adobe Acrobat vulnerabilities

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References

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