CVE-2026-4947: Addressed a potential insecure direct object reference (IDOR) vulnerability in the signing invitation acceptan

Q: How do I fix CVE-2026-4947?

esign: upgrade to 2026-03-26. Exact commands for each OS are on this page.

Q: Is CVE-2026-4947 being exploited?

CVE-2026-4947 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-2026-4947 affect?

CVE-2026-4947 affects esign. Severity is high (CVSS 7.1). Addressed a potential insecure direct object reference (IDOR) vulnerability in the signing invitation acceptance process. Under certain conditions, this issue could have allowed an attacker to access or modify unauthorized resources by mani

Routine

HIGH 7.1UPGRADE

CVE-2026-4947 is a high-severity flaw (CVSS 7.1) affecting esign. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Addressed a potential insecure direct object reference (IDOR) vulnerability in the signing invitation acceptance process. Under certain conditions, this issue could have allowed an attacker to access or modify unauthorized resources by manipulating user-supplied object identifiers, potentially leading to forged signatures and compromising the integrity and authenticity of documents undergoing the signing process. The issue was caused by insuffici

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 93%)
CISA exploited list	No
Weakness	CWE-284
Published	2026-04-01
Last modified	2026-06-17

Publisher (CNA): Foxit · Vendor: foxit

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-01 02:16 UTCPublished CVE record published
2026-06-17 10:57 UTCUpdated Record last modified

foxit esign UPGRADE

Affected: < 2026-03-26

Fixed in: 2026-03-26

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 2026-03-26 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade esign

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-2026-4947?

esign: upgrade to 2026-03-26. Exact commands for each OS are on this page.

Is CVE-2026-4947 being exploited?

CVE-2026-4947 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-2026-4947 affect?

CVE-2026-4947 affects esign. Severity is high (CVSS 7.1). Addressed a potential insecure direct object reference (IDOR) vulnerability in the signing invitation acceptance process. Under certain conditions, this issue could have allowed an attacker to access or modify unauthorized resources by mani

How urgent is CVE-2026-4947?

Priority 27/100. High severity

References

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