CVE-2026-77166

LOWCVSS 2.4 · LOW

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

The emoji field in the page emoji update endpoint does not properly validate user input. By injecting long text and line breaks, the sidebar layout becomes broken and can hide other items.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-840

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Referenced assets1 URL

By indicator

https://www.valtersit.com/cve/CVE-2026-77166

Full discourse1 post

Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters1d
CVE-2026-77166: unvalidated emoji field allows layout injection that can hide sidebar items. CVSS 2.4, low severity. Patch status unknown. Details: https://www.valtersit.com/cve/CVE-2026-77166 #CVE #infosec #CVEALERT #CVE #infosec #Linux #XSS #valtersit #snippet #SysAdmin #cybersecurity #devsecops #devops #developer #100daysofcode #git #github #gitlab #redteam #blueteam #ethicalhacker #cybersecurityawareness #cybersecuritynews #cybersecuritytips #python #hacker #kali #ubuntu #debian #docker
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