# CVE-2026-89277: Adobe Content Credentials integer overflow denial of service

Source: https://junglewise.ai/threats/cve-2026-89277-cai-content-credentials-is-affected-by-an-integer-overflow-or  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-22. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-89277 · Severity: medium · CVSS 5.5 · Published 2026-09-22

Adobe Content Credentials, which authenticates and verifies the origin of digital content, contains an integer overflow vulnerability that can crash the application. An attacker can exploit this by tricking a user into visiting a malicious URL or webpage, resulting in a temporary service disruption. No authentication is required and the attack succeeds through user interaction alone.

Technologies: [Adobe Content Credentials](https://junglewise.ai/threats/technologies/content-credentials). Vendors: [Adobe](https://junglewise.ai/threats/vendors/adobe).

## Quick answers

**Is CVE-2026-89277 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-89277 being exploited in the wild.

**How severe is CVE-2026-89277?** Medium severity, with a CVSS score of 5.5, published 22 September 2026.

**Which products and versions are affected?** Adobe Content Credentials.

**Is there a fix for CVE-2026-89277?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-89277 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-89277?** Check whether you run Adobe Content Credentials. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An integer overflow or wraparound vulnerability in Adobe Content Credentials allows an attacker to cause an application crash (denial-of-service). The vulnerability requires user interaction—specifically visiting a maliciously crafted URL or compromised webpage—to trigger the overflow condition. The attack vector is network-based and no special privileges are needed to exploit it.

## Affected products

- Adobe Content Credentials

## Timeline

- 2026-09-22: disclosed

## References

- [https://helpx.adobe.com/security/products/content-authenticity-sdk/apsb26-147.html](https://helpx.adobe.com/security/products/content-authenticity-sdk/apsb26-147.html)

## Related threats

- [Adobe Content Credentials input validation bypass](https://junglewise.ai/threats/cve-2026-75634-cai-content-credentials-is-affected-by-an-improper-input)
- [Adobe Content Credentials integer underflow in decoder](https://junglewise.ai/threats/cve-2026-76189-adobe-content-credentials-integer-underflow-in-decoder)
- [Adobe Content Credentials improper input validation DoS](https://junglewise.ai/threats/cve-2026-71443-adobe-content-credentials-improper-input-validation-dos)
- [Adobe CAI Content Credentials uncontrolled resource consumption](https://junglewise.ai/threats/cve-2026-71360-adobe-cai-content-credentials-uncontrolled-resource-consumption)