CVE & CISA-KEV Catalog

CVE-2026-116196

MEDIUM
5.3
CVSS v3
NVD

Description

Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks the live account Authorization token and SSE-C keys on HTTP redirects from --b2-download-url hosts. Attackers can observe a same-host HTTPS-to-HTTP downgrade redirect to capture the cleartext B2 token, or receive cross-host redirects disclosing SSE-C customer encryption keys.

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 VectorAdjacent
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

EPSS data unavailable for this CVE.

References

Other references2

Related Vulnerabilities

Other CWE-319 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2018-12710High8.077%--
CVE-2024-25735Critical9.151%-Fix
CVE-2019-3993High7.546%--
CVE-2017-5259High8.832%--
CVE-2016-5649Critical9.824%--
CVE-2021-39341High8.222%--

Common questions

How do I fix CVE-2026-116196?

No published fix for CVE-2026-116196 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

How severe is CVE-2026-116196?

CVE-2026-116196 has a CVSS v3 base score of 5.3, rated medium. 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 2026-10-25.