CAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)
CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.
- Published
- May 12, 2026
- Updated
- Aug 27, 2026
- EPSS
- 0.3% · 16th percentile
- CWE
- CWE-191
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Report tools
Action score
24
Monitor
Low priority for now.
- CVSS
- 24 / 40 · 6.2 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.3%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- —
- CNA · adobe
- 6.2
- NVD has not scored this yet; the score shown is the CNA’s.
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- adobe c2pabefore 0.80.1
- adobe c2pa-webbefore 0.7.1
Versions reported by the vendor
Affected version ranges reported by the assigning authority (adobe). Independent of NVD's CPE analysis and usually ahead of it.
Adobe Content Credentials JS SDK
- @contentauth/c2pa-web@0.7.1not affected
- up to and including @contentauth/c2pa-web@0.7.0affected
Adobe Content Credentials Rust SDK
- c2pa-v0.80.1not affected
- up to and including c2pa-v0.78.2affected
Same product
adobe: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-48290CAI Content Credentials | Server-Side Request Forgery (SSRF) (CWE-918)32Monitor
- CVE-2026-71443CAI Content Credentials | Improper Input Validation (CWE-20)30Monitor
- CVE-2026-71442CAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)30Monitor
- CVE-2026-71360CAI Content Credentials | Uncontrolled Resource Consumption (CWE-400)30Monitor
- CVE-2026-48439CAI Content Credentials | Uncontrolled Resource Consumption (CWE-400)30Monitor
- CVE-2026-48438CAI Content Credentials | NULL Pointer Dereference (CWE-476)30Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2026-71442105 days apartCAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)30Monitor
- CVE-2026-346720 days apartCAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)24Monitor
- CVE-2026-4829663 days apartCAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)24Monitor
- CVE-2026-4829863 days apartCAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)24Monitor
- CVE-2026-4843591 days apartCAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)24Monitor
- CVE-2026-7138991 days apartCAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)24Monitor
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-191 · Integer Underflow (Wrap or Wraparound)CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.