CVE-2026-71389Hinoki check available

Local application crash

Published Aug 11, 2026 · Updated Aug 11, 2026

Integer underflow in Adobe Content Credentials SDKs and CLI allows local users to crash applications through local processing. Adobe has not disclosed the affected parser, arithmetic operation, or input field that causes the underflow. No privileges or user interaction are required, but exploitation is local and the reported consequence is limited to an application crash.

CVSS severity6.2
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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Summary

What happened

Integer underflow in Adobe Content Credentials SDKs and CLI allows local users to crash applications through local processing. Adobe has not disclosed the affected parser, arithmetic operation, or input field that causes the underflow. No privileges or user interaction are required, but exploitation is local and the reported consequence is limited to an application crash.

The record

CVE
CVE-2026-71389
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
Adobe
Product
Content Credentials JS SDK
Classifications
CWE-191, T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=@contentauth/[email protected]

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Adobe · Content Credentials JS SDKversion=0 <=@contentauth/[email protected]
Adobe · Content Credentials Rust SDKversion=0 <=c2pa-v0.90.5
Adobe · Content Credentials Command-Line Toolversion=0 <=c2patool-v0.27.5

Published CVSS scores

6.2Adobe Systems IncorporatedCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-191Integer Underflow (Wrap or Wraparound)
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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