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TI-2018-02956 Aliases CVE-2018-3988GHSA-f287-vf22-3v2c

Information disclosure in Signal

Priority LOW 22CWE-200Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-200.

Summary

Signal Messenger for Android 4.24.8 may expose private information when using "disappearing messages." If a user uses the photo feature available in the "attach file" menu, then Signal will leave the picture in its own cache directory, which is available to any application on the system.

Why it matters now

EPSS 0.00527 44th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—SignalSignal Messenger Android 4.24.8—No fix listedCNA
  • Signal Vendor— Affected Signal Messenger Android 4.24.8 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:signal:private_messenger:4.24.8:*:*:*:*:android:*:*4.24.8VulnerableSignal
  • cpe:2.3:a:signal:private_messenger:4.24.8:*:*:*:*:android:*:* Versions 4.24.8 Vulnerable ·Signal

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-3988
  2. 2026-10-03 Alias added: GHSA-f287-vf22-3v2c

References

Exploit 1

  • TI-2019-12817 The WebRTC component in the Signal Private Messenger application through 4.47.7 for… CVSS 3.1CRITICAL 9.8
  • TI-2019-12816 The Signal Private Messenger application before 4.47.7 for Android allows a caller to… CVSS 3.1HIGH 7.5
  • TI-2019-07336 Open Whisper Signal (aka Signal-Desktop) through 1.23.1 and the Signal Private Messenger… CVSS 3.0MEDIUM 6.5
  • 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

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences