An issue has been found in function EmbedStream::getChar in PDF2JSON 0.70 that allows attackers to cause a Denial of Service due to a null pointer derefenrece (invalid read of size 8) .
CVSS v4.0 Metrics
Exploitability
Attack VectorLocal
ComplexityLow
RequirementsPresent
PrivilegesNone
User InteractionActive
Threat
Exploit MaturityPoC
Vulnerable System
ConfidentialityNone
IntegrityNone
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | PoC | E: U→P | 1.7 → 4.4 |
| 2026-07-21 | nvd | AV: P→L, AC: H→L, PR: H→N, VA: N→H | 0.0 → 1.7 |
| 2026-07-21 | cve.org | initial, patch: Unavailable | 0.0 |
Affected Software
| Vendor | Product | Version |
|---|
| flowpaper | pdf2json | 0.70 |
Published: 2021-07-21
