How severe is CVE-2026-71390?

CVE-2026-71390 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-71390 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-71390?

CVE-2026-71390 primarily affects Adobe C2pa. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-71390?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-71390 published?

CVE-2026-71390 was published on 2026-08-11 and last updated on 2026-08-14.

CVE-2026-71390

CVE-2026-71390 is a medium-severity vulnerability in Adobe C2pa with a CVSS 3.x base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 4.0)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Adobe C2pa
Published: 2026-08-11
Last modified: 2026-08-14

Description

CAI Content Credentials is affected by an Improper Input Validation vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized limited write access. Exploitation of this issue does not require user interaction.

Frequently asked questions

What is CVE-2026-71390?: CAI Content Credentials is affected by an Improper Input Validation vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized limited write access. Exploitation of this issue does not require user interaction.
How severe is CVE-2026-71390?: CVE-2026-71390 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-71390 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-71390?: CVE-2026-71390 primarily affects Adobe C2pa. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-71390?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-71390 published?: CVE-2026-71390 was published on 2026-08-11 and last updated on 2026-08-14.

References

https://helpx.adobe.com/security/products/content-authenticity-sdk/apsb26-111.html

Affected products (3)

cpe:2.3:a:adobe:c2pa:*:*:*:*:*:rust:*:*
cpe:2.3:a:adobe:c2pa-web:*:*:*:*:*:node.js:*:*
cpe:2.3:a:adobe:c2patool:*:*:*:*:*:*:*:*

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