CVE-2026-24853: Caido is a web security auditing toolkit

Q: How do I fix CVE-2026-24853?

caido: upgrade to 0.55.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-24853 being exploited?

CVE-2026-24853 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-24853 affect?

CVE-2026-24853 affects caido. Severity is high (CVSS 8.1). Caido is a web security auditing toolkit. Prior to 0.55.0, Caido blocks non whitelisted domains to reach out through the 8080 port, and shows Host/IP is not allowed to connect to Caido on all endpoints. But this is bypassable by injecting a

Q: How urgent is CVE-2026-24853?

Priority 39/100. High severity; Remotely exploitable, no login, no user action

Routine

HIGH 8.1REMOTEUPGRADE

CVE-2026-24853 is a high-severity flaw (CVSS 8.1) affecting caido. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Caido is a web security auditing toolkit. Prior to 0.55.0, Caido blocks non whitelisted domains to reach out through the 8080 port, and shows Host/IP is not allowed to connect to Caido on all endpoints. But this is bypassable by injecting a X-Forwarded-Host: 127.0.0.1:8080 header. This vulnerability is fixed in 0.55.0.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-290
Published	2026-02-13
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: caido

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-13 23:16 UTCPublished CVE record published
2026-06-17 10:23 UTCUpdated Record last modified

caido caido UPGRADE

Affected: < 0.55.0

Fixed in: 0.55.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy caido || rpm -q caido || caido --version

2. UPGRADE to 0.55.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade caido

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade caido

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-24853?

caido: upgrade to 0.55.0. Exact commands for each OS are on this page.

Is CVE-2026-24853 being exploited?

CVE-2026-24853 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-24853 affect?

CVE-2026-24853 affects caido. Severity is high (CVSS 8.1). Caido is a web security auditing toolkit. Prior to 0.55.0, Caido blocks non whitelisted domains to reach out through the 8080 port, and shows Host/IP is not allowed to connect to Caido on all endpoints. But this is bypassable by injecting a

How urgent is CVE-2026-24853?

Priority 39/100. High severity; Remotely exploitable, no login, no user action

References

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