CVE-2026-48438: CAI Content Credentials is affected by a NULL Pointer Dereference vulnerability that could result in an applic

Q: How do I fix CVE-2026-48438?

c2pa: upgrade to 0.90.6; c2pa-web: upgrade to 0.12.1; c2patool: upgrade to 0.27.6. Exact commands for each OS are on this page.

Q: Is CVE-2026-48438 being exploited?

CVE-2026-48438 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-2026-48438 affect?

CVE-2026-48438 affects c2pa, c2pa-web, c2patool. Severity is high (CVSS 7.5). CAI Content Credentials is affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service con

Q: How urgent is CVE-2026-48438?

Priority 46/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADEUPGRADEUPGRADE

CVE-2026-48438 is a high-severity flaw (CVSS 7.5) affecting c2pa, c2pa-web, c2patool. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

CAI Content Credentials is affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-476
Published	2026-08-11
Last modified	2026-08-28

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

Last updated 2026-08-28 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-11 17:18 UTCPublished CVE record published
2026-08-28 00:18 UTCUpdated Record last modified

adobe c2pa UPGRADE

Affected: < 0.90.6

Fixed in: 0.90.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy c2pa || rpm -q c2pa || c2pa --version

2. UPGRADE to 0.90.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade c2pa

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade c2pa

Note

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

adobe c2pa-web UPGRADE

Affected: < 0.12.1

Fixed in: 0.12.1

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls c2pa-web

2. UPGRADE to 0.12.1

npm install c2pa-web@">=0.12.1"

adobe c2patool UPGRADE

Affected: < 0.27.6

Fixed in: 0.27.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy c2patool || rpm -q c2patool || c2patool --version

2. UPGRADE to 0.27.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade c2patool

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade c2patool

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-2026-48438?

c2pa: upgrade to 0.90.6; c2pa-web: upgrade to 0.12.1; c2patool: upgrade to 0.27.6. Exact commands for each OS are on this page.

Is CVE-2026-48438 being exploited?

CVE-2026-48438 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-2026-48438 affect?

CVE-2026-48438 affects c2pa, c2pa-web, c2patool. Severity is high (CVSS 7.5). CAI Content Credentials is affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service con

How urgent is CVE-2026-48438?

Priority 46/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-34665 HIGH 7.5 UPGRADE UPGRADE CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Uncontrolled Reso
CVE-2026-34666 MEDIUM 6.2 UPGRADE UPGRADE CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Improper Input Va
CVE-2026-34667 MEDIUM 6.2 UPGRADE UPGRADE CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Integer Underflow
CVE-2026-34670 MEDIUM 6.2 UPGRADE UPGRADE CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Improper Input Va
CVE-2026-34672 MEDIUM 6.2 UPGRADE UPGRADE CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Integer Underflow

References

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