CVE-2026-57951: Mythic before 3.4.0.60 contains a broken hasura permission filter on the payload_build_step table with an alwa

Q: How do I fix CVE-2026-57951?

mythic: upgrade to 3.4.0.60. Exact commands for each OS are on this page.

Q: Is CVE-2026-57951 being exploited?

CVE-2026-57951 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-2026-57951 affect?

CVE-2026-57951 affects mythic. Severity is medium (CVSS 6.5). Mythic before 3.4.0.60 contains a broken hasura permission filter on the payload_build_step table with an always-satisfied _or condition that bypasses operation-scoped access controls. Authenticated operators and spectators can query payloa

Q: How urgent is CVE-2026-57951?

Priority 32/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2026-57951 is a medium-severity flaw (CVSS 6.5) affecting mythic. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Mythic before 3.4.0.60 contains a broken hasura permission filter on the payload_build_step table with an always-satisfied _or condition that bypasses operation-scoped access controls. Authenticated operators and spectators can query payload_build_step to read step_stdout, step_stderr, step_name, and step_description across all operations on the server.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-863
Published	2026-06-29
Last modified	2026-10-25

Publisher (CNA): VulnCheck · Vendor: its-a-feature

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-29 18:16 UTCPublished CVE record published
2026-10-25 21:10 UTCUpdated Record last modified

its-a-feature mythic UPGRADE

Affected: < 3.4.0.60

Fixed in: 3.4.0.60

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 3.4.0.60 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mythic

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-2026-57951?

mythic: upgrade to 3.4.0.60. Exact commands for each OS are on this page.

Is CVE-2026-57951 being exploited?

CVE-2026-57951 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-2026-57951 affect?

CVE-2026-57951 affects mythic. Severity is medium (CVSS 6.5). Mythic before 3.4.0.60 contains a broken hasura permission filter on the payload_build_step table with an always-satisfied _or condition that bypasses operation-scoped access controls. Authenticated operators and spectators can query payloa

How urgent is CVE-2026-57951?

Priority 32/100. No elevated risk signals yet.

Related CVEs

CVE-2026-57953 MEDIUM 5.4 UPGRADE Mythic before 3.4.0.60 contains an authorization bypass vulnerability that allows authenticated spectator-role
CVE-2026-57952 MEDIUM 5.3 UPGRADE Mythic before 3.4.0.60 contains an authorization bypass vulnerability in four REST endpoints (c2profile_config

References

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