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Not in CISA KEV
HIGH severity

CVE-2026-100622 — Cap-go

HIGH

CVE-2026-100622 is a high-severity (CVSS 7.5) Information Exposure vulnerability. No vendor fix is recorded yet; mitigation options are listed below.

capgo.app through 12.129.0 fails to verify deletion status when serving cached bundle artifacts from the public file read endpoint. Unauthenticated attackers can download deleted bundles…

Published
Sep 26, 2026
Updated
Sep 26, 2026
Affected
—
Patched
—
Exploits
None indexed
Exploitation data as of Sep 26, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Description

capgo.app through 12.129.0 fails to verify deletion status when serving cached bundle artifacts from the public file read endpoint. Unauthenticated attackers can download deleted bundles using cached URLs and trigger restoration of deleted objects into R2 storage on cache hits.

Detection & mitigation playbook

Vulnerability
  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`). Because exploitation targets the running service rather than your application code, O3 also flags the exploit behaviour from runtime telemetry and egress traffic.

  2. Remediation status

    No fixed release is recorded for CVE-2026-100622 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands. O3's runtime protection blocks the information exposure flaw at execution, which holds the line on hosts you cannot patch immediately.

  4. How O3 protects you

    O3 detects and blocks CVE-2026-100622 exploitation at runtime with eBPF exploit-chain detection, plus L7 egress monitoring that catches a post-exploitation callback and cuts the attacker's outbound channel.

Tailored to CVE-2026-100622. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

capgo.app through 12.129.0 fails to verify deletion status when serving cached bundle artifacts from the public file read endpoint. Unauthenticated attackers can download deleted bundles using cached URLs and trigger restoration of deleted objects into R2 storage on cache hits.
O3 Security · Impact-Aware SCA

Is CVE-2026-100622 in your dependencies?

O3 Security finds CVE-2026-100622 across dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

CVE-2026-100622: Cap-go (High 7.5) | O3 Security