CVE-2014-2905: fish (aka fish-shell) 1.16.0 before 2.1.1 does not properly check the credentials, which allows local users to

Routine

MEDIUM 6.9DOWNGRADE

CVE-2014-2905 is a medium-severity flaw (CVSS 6.9) affecting fish. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

fish (aka fish-shell) 1.16.0 before 2.1.1 does not properly check the credentials, which allows local users to gain privileges via the universal variable socket, related to /tmp/fishd.socket.user permissions.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.9 (Medium)
EPSS exploit chance	0.4% (top 71%)
CISA exploited list	No
Weakness	CWE-264
Published	2014-05-02
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fishshell

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

Am I affected?

Timeline

2014-05-02 14:55 UTCPublished CVE record published
2026-06-17 00:07 UTCUpdated Record last modified

fishshell fish DOWNGRADE

Affected: 1.16.0 · 2.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.16.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.16.0 (Debian / Ubuntu)

apt-cache madison fish sudo apt install fish=<VERSION_BEFORE_1.16.0> sudo apt-mark hold fish

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list fish sudo dnf downgrade fish-<VERSION_BEFORE_1.16.0> sudo dnf versionlock add fish

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2014-2905?

fish: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-2905 being exploited?

CVE-2014-2905 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-2014-2905 affect?

CVE-2014-2905 affects fish. Severity is medium (CVSS 6.9). fish (aka fish-shell) 1.16.0 before 2.1.1 does not properly check the credentials, which allows local users to gain privileges via the universal variable socket, related to /tmp/fishd.socket.user permissions.

How urgent is CVE-2014-2905?

Priority 31/100. No elevated risk signals yet.

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References

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