CVE-2026-116072
MediumCVSS 5.4Exploitation Probability (EPSS)
Low risk2th percentile - higher than 2% of all known CVEs
Summary
Infinity for Reddit through 8.3.4 contains a login cross-site request forgery vulnerability that allows attackers to log victims into an attacker-controlled account because the exported LoginChromeCustomTabActivity redirect handler checks a hardcoded OAuth state value. Attackers can authorize the app's client ID with their own Reddit account, then deliver an infinity://localhost redirect containing their code and the constant state, causing the victim's posts, messages, and browsing to occur on the attacker's account.
Risk Assessment
A victim may unknowingly operate on the attacker's account, leaking content, messages, and browsing history and performing actions on their behalf.
Recommendation
Update Infinity for Reddit to a version later than 8.3.4 and replace the constant state value with a random, single-use parameter verified by the app.
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Original NVD description (English source)
Infinity for Reddit through 8.3.4 contains a login cross-site request forgery vulnerability that allows attackers to log victims into an attacker-controlled account because the exported LoginChromeCustomTabActivity redirect handler checks a hardcoded OAuth state value. Attackers can authorize the app's client ID with their own Reddit account, then deliver an infinity://localhost redirect containing their code and the constant state, causing the victim's posts, messages, and browsing to occur on the attacker's account.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

