MEDIUMVulnerability

CVE-2026-79780

rclone before v1.75.0 fails to sanitize IBM IAM bearer tokens and SSE-C encryption keys during S3 redirect callbacks, allowing credentials to be preserved across scheme or host changes. Attackers observing network traffic from a trusted endpoint can capture reusable IBM IAM tokens on same-host HTTPS-to-HTTP downgrades or SSE-C keys on cross-origin redirects to access protected S3 objects.

Properties

severity
MEDIUM
score
5.3
epss_score
0.00095
cve_id
CVE-2026-79780
signal_observed_at
2026-09-15T21:12:47+00:00
vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
published_at
2026-08-25T16:17:29.947
last_modified
2026-09-10T20:46:19.780
epss_percentile
0.00752

Related Entities (3)

ENRICHED_BY (1)

[Source]FIRST EPSS

DESCRIBED_BY (1)

[Source]NVD

HAS_WEAKNESS (1)

[Weakness]Exposure of Sensitive Information to an Unauthorized Actor

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CVE-2026-79780 — Ninja Signal Threat Intelligence | Ninja Signal