CVE-2024-1402

Summary

Mattermost fails to check if a custom emoji reaction exists when sending it to a post and to limit the amount of custom emojis allowed to be added in a post, allowing an attacker sending a huge amount of non-existent custom emojis in a post to crash the mobile app of a user seeing the post and to crash the server due to overloading when clients attempt to retrive the aforementioned post. 

Affected Software

VendorProductVersion RangeStatus
MattermostMattermost0 <= 8.1.7affected
MattermostMattermost0 <= 9.1.4affected
MattermostMattermost0 <= 9.2.3affected
MattermostMattermost9.3.0unaffected
MattermostMattermost9.2.4unaffected
MattermostMattermost9.1.5unaffected
MattermostMattermost8.1.8unaffected

Weaknesses

  • CWE-400: CWE-400: Uncontrolled Resource Consumption

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References