CVE-2026-48437

Unauthorized writes via improper certificate validation

Published Aug 11, 2026 · Updated Aug 11, 2026

Improper certificate validation in Adobe Content Credentials SDKs and C2PA Tool allows attackers to gain unauthorized write access. Adobe has not published the affected validation locus or the operation that mishandles untrusted certificate data. Exploitation requires user interaction with a malicious URL or compromised web page; no confidentiality or availability impact is reported.

CVSS severity5.5
Medium
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in Adobe Content Credentials SDKs and C2PA Tool allows attackers to gain unauthorized write access. Adobe has not published the affected validation locus or the operation that mishandles untrusted certificate data. Exploitation requires user interaction with a malicious URL or compromised web page; no confidentiality or availability impact is reported.

The record

CVE
CVE-2026-48437
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
Adobe
Product
Content Credentials JS SDK
Classifications
CWE-295
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

5.5Adobe Systems IncorporatedCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-295Improper Certificate Validation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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