CVE-2026-1496Disclosure

LOWCVSS 9.3 · CRITICAL

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft
  • Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

Vulnerable versions of Coverity Connect lack an error handler in the authentication logic for command line tooling that makes it vulnerable to an authentication bypass. A malicious actor with access to the /token API endpoint that either knows or guesses a valid username, can use this in a specially crafted HTTP request to bypass authentication. Successful exploitation allows the malicious actor to assume all roles and privileges granted to the valid user’s Coverity Connect account.

1.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-639

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

NONE

Threat summary

  • Public PoC is present in monitored signal
  • 1 mentions across 1 observed day

What's happening

  • PoC mentioned or linked in 1 signal
  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-03-27: 1PoC Mentioned / Linked · 2026-03-27: 1Technical Details · 2026-03-27: 103-27
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • 0day Signal@0dayPublishing
    Disclosure

    🚨 CVE-2026-1496: Coverity CLI Authentication Bypas... Missing error handler in Coverity's /token endpoint lets attackers bypass auth with just a valid username - complete pri... https://zerodaysignal.com/vulnerability/CVE-2026-1496 #netsec #vulnerability #CVE #sysadmin #zeroday

    Post summary

    The tweet announces CVE‑2026‑1496, a Coverity CLI authentication bypass caused by an error handler flaw in the /token endpoint, and links to a Zero Day Signal page for further details.

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    194 followersView on X

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