CVE & CISA-KEV Catalog

CVE-2026-82287

HIGH
8.1
CVSS v3
NVD

Description

Rybbit before 2.7.0 contains a CORS misconfiguration vulnerability that allows attackers to bypass origin restrictions by reflecting any request origin in Access-Control-Allow-Origin responses while credentials are enabled. Attackers can issue credentialed cross-origin requests from any website to read analytics data, account information, and perform authenticated state-changing operations as the victim user.

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Exploit Intelligence

0.28%probability of exploitation in 30 days
20thpercentile

Low risk: more likely to be exploited than 20% of all known CVEs.

References

Related Vulnerabilities

Other CWE-942 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2026-22812High8.817%-Fix
CVE-2026-59726Critical10.06.9%--
CVE-2023-38122High7.21.9%-Fix
CVE-2023-38125High8.81.3%-Fix
CVE-2026-54753Medium5.91.2%--
CVE-2019-14860Medium6.51.2%-Fix

Common questions

How do I fix CVE-2026-82287?

No published fix for CVE-2026-82287 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

Is CVE-2026-82287 being actively exploited?

Not that we know of. CVE-2026-82287 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.28% is the estimated probability that it will be exploited in the next 30 days. That is higher than 20% of all scored CVEs.

How severe is CVE-2026-82287?

CVE-2026-82287 has a CVSS v3 base score of 8.1, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-08-28.