The image rendering component (createGenericPreview) of the Open Whisper Signal app…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-400.
Summary
The image rendering component (createGenericPreview) of the Open Whisper Signal app through 2.29.0 for iOS fails to check for unreasonably large images before manipulating received images. This allows for a large image sent to a user to exhaust all available memory when the image is displayed, resulting in a forced restart of the device.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-16132
- 2026-10-03 Alias added: GHSA-qqwm-p976-w7mm
References
Advisory 1
More Signal vulnerabilities
- TI-2025-05154 Signal App Biometric Authentication missing critical step in authentication CVSS 4.0LOW 1.0
- TI-2022-11105 The Signal app before 5.34 for iOS allows URI spoofing via RTLO injection. CVSS 3.1HIGH 7.5
- TI-2018-07005 The Open Whisper Signal app before 2.23.2 for iOS allows physically proximate attackers… CVSS 3.0MEDIUM 6.8
- TI-2020-04681 Signal Private Messenger Android v4.59.0 and up and iOS v3.8.1.5 and up allows a remote… CVSS 3.1MEDIUM 5.3
Sources
- CVE-2018-16132 · CVE Program
- CVE-2018-16132 · NVD
- FIRST EPSS
- GHSA-qqwm-p976-w7mm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences