Application crash via overflowing manifest hash ranges
Published Aug 11, 2026 · Updated Aug 11, 2026
Integer overflow in affected Adobe Content Credentials SDKs and C2PA Tool allows local users to crash applications with crafted manifests. In hash_stream_by_alg_with_progress, two unchecked u64 additions combine attacker-controlled HashRange start and length values from manifest CBOR, panicking when the sum exceeds u64::MAX. No valid signature or user interaction is required; the consequence is limited to terminating the application that verifies the malicious manifest.
Summary
What happened
Integer overflow in affected Adobe Content Credentials SDKs and C2PA Tool allows local users to crash applications with crafted manifests. In hash_stream_by_alg_with_progress, two unchecked u64 additions combine attacker-controlled HashRange start and length values from manifest CBOR, panicking when the sum exceeds u64::MAX. No valid signature or user interaction is required; the consequence is limited to terminating the application that verifies the malicious manifest.
The record
- CVE
- CVE-2026-48445
- Published
- Aug 11, 2026
- Updated
- Aug 11, 2026
- Vendor
- Adobe
- Product
- Content Credentials JS SDK
- Classifications
- CWE-190, T1499
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 11, 2026CVE publishedPublication date reported by the CVE source.
- 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.
- Affected versionversion=0 <=@contentauth/[email protected]
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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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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