Adobe Security Bulletin

Last updated on Aug 11, 2026

Security updates available for Content Credentials SDK | APSB26-111

Bulletin ID

Date published

Priority

APSB26-111

August 11, 2026

3

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Summary

Adobe has released security updates for Content Credentials SDK. This update addresses critical and important vulnerabilities that could result in security feature bypass, arbitrary file system write, arbitrary file system read, application denial-of-service, and privilege escalation.

Adobe is not aware of any exploits in the wild for any of the issues addressed in these updates.

Affected versions

Product

Affected version

Platform

Content Credentials Rust SDK

c2pa-v0.90.5 and earlier

All

C2PA Tool

c2patool-v0.27.5 and earlier

All

Content Credentials JS SDK

@contentauth/c2pa-web@0.12.0 and earlier

All

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Solution

Adobe categorizes these updates with the following priority rating and recommends users update their installation to the newest version:

Product

Updated version

Platform

Priority rating

Availability

Content Credentials Rust SDK

c2pa-v0.90.6

All

3

Release Notes

C2PA Tool

c2patool-v0.27.6

All

3

Release Notes

Content Credentials JS SDK

@contentauth/c2pa-web@0.12.1

All

3

Release Notes

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Vulnerability Details

CVE-2026-48439

Vulnerability category: Uncontrolled Resource Consumption (CWE-400)
Vulnerability impact: Application denial-of-service
Severity: Critical
CVSS base score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2026-48438

Vulnerability category: NULL Pointer Dereference (CWE-476)
Vulnerability impact: Application denial-of-service
Severity: Critical
CVSS base score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2026-48442

Vulnerability category: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22)
Vulnerability impact: Arbitrary file system write
Severity: Critical
CVSS base score: 7.1
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

CVE-2026-48436

Vulnerability category: Improper Input Validation (CWE-20)
Vulnerability impact: Security feature bypass
Severity: Important
CVSS base score: 6.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CVE-2026-48387

Vulnerability category: Integer Overflow or Wraparound (CWE-190)
Vulnerability impact: Application denial-of-service
Severity: Important
CVSS base score: 6.2
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2026-48435

Vulnerability category: Integer Underflow (Wrap or Wraparound) (CWE-191)
Vulnerability impact: Application denial-of-service
Severity: Important
CVSS base score: 6.2
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2026-48445

Vulnerability category: Integer Overflow or Wraparound (CWE-190)
Vulnerability impact: Application denial-of-service
Severity: Important
CVSS base score: 6.2
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2026-48434

Vulnerability category: Uncontrolled Resource Consumption (CWE-400)
Vulnerability impact: Application denial-of-service
Severity: Important
CVSS base score: 6.2
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2026-48444

Vulnerability category: Integer Overflow or Wraparound (CWE-190)
Vulnerability impact: Application denial-of-service
Severity: Important
CVSS base score: 6.2
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2026-48443

Vulnerability category: Uncontrolled Resource Consumption (CWE-400)
Vulnerability impact: Application denial-of-service
Severity: Important
CVSS base score: 6.2
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2026-71389

Vulnerability category: Integer Underflow (Wrap or Wraparound) (CWE-191)
Vulnerability impact: Application denial-of-service
Severity: Important
CVSS base score: 6.2
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2026-48437

Vulnerability category: Improper Certificate Validation (CWE-295)
Vulnerability impact: Security feature bypass
Severity: Important
CVSS base score: 5.5
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CVE-2026-48446

Vulnerability category: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22)
Vulnerability impact: Arbitrary file system read
Severity: Important
CVSS base score: 5.5
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVE-2026-47922

Vulnerability category: Server-Side Request Forgery (SSRF) (CWE-918)
Vulnerability impact: Security feature bypass
Severity: Important
CVSS base score: 4.7
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

CVE-2026-71390

Vulnerability category: Improper Input Validation (CWE-20)
Vulnerability impact: Privilege escalation
Severity: Important
CVSS base score: 4.0
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Note

Effective August 11, 2026, Adobe may assign a single CVE identifier to internally discovered vulnerabilities with the same severity rating and CWE category when a release includes systemic fixes.

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Acknowledgments

Adobe would like to thank the following researchers for reporting this issue and for working with Adobe to help protect our customers.

0x0.eth (0x0doteth) — CVE-2026-47922
bau1u — CVE-2026-48439, CVE-2026-48438, CVE-2026-48387, CVE-2026-48435, CVE-2026-48445, CVE-2026-48434, CVE-2026-48443, CVE-2026-71389
Sindid (sndd) — CVE-2026-48442
susdrip (susdrip) — CVE-2026-48437
MJ (mickeyjoe) — CVE-2026-48436
Sneharghya (sneharghyaroy) — CVE-2026-48446
Ashutosh (ashutosh0x) — CVE-2026-48444
Cantina (cantina-security) — CVE-2026-71390

NOTE: Adobe has a public bug bounty program with Intigriti. If you are interested in working with Adobe as an external security researcher, please check out https://app.intigriti.com/programs/adobe/adobepublic/detail.

For more information, visit https://www.adobe.com/trust/security/bug-bounty.html, or email PSIRT@adobe.com.

CardTitle

APSB26-111

CardDescription

Priority 3 Security update

CardImage

Created

2026-08-11