CVE-2024-10394: A local user can bypass the OpenAFS PAG (Process Authentication Group) throttling mechanism in Unix clients, a

Routine

HIGH 7.8UPGRADE

CVE-2024-10394 is a high-severity flaw (CVSS 7.8) affecting openafs. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A local user can bypass the OpenAFS PAG (Process Authentication Group) throttling mechanism in Unix clients, allowing the user to create a PAG using an existing id number, effectively joining the PAG and letting the user steal the credentials in that PAG.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 90%)
CISA exploited list	No
Weakness	CWE-305
Published	2024-11-14
Last modified	2026-06-17

Publisher (CNA): Fedora Project · Vendor: openafs

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

Am I affected?

Timeline

2024-11-14 20:15 UTCPublished CVE record published
2026-06-17 06:55 UTCUpdated Record last modified

openafs openafs UPGRADE

Affected: >= 1.0 and < 1.6.25 · >= 1.8.0 and < 1.8.13 · 1.9.0

Fixed in: 1.6.25, 1.8.13

Safe to downgrade to: a release before 1.0

1. Check installed version

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

2. UPGRADE to 1.6.25 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade openafs

Note

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

3. If no update is available yet, DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison openafs sudo apt install openafs=<VERSION_BEFORE_1.0> sudo apt-mark hold openafs

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list openafs sudo dnf downgrade openafs-<VERSION_BEFORE_1.0> sudo dnf versionlock add openafs

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-2024-10394?

openafs: upgrade to 1.6.25, 1.8.13. Exact commands for each OS are on this page.

Is CVE-2024-10394 being exploited?

CVE-2024-10394 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-2024-10394 affect?

CVE-2024-10394 affects openafs. Severity is high (CVSS 7.8). A local user can bypass the OpenAFS PAG (Process Authentication Group) throttling mechanism in Unix clients, allowing the user to create a PAG using an existing id number, effectively joining the PAG and letting the user steal the credentia

How urgent is CVE-2024-10394?

Priority 30/100. High severity

Related CVEs

CVE-2024-10397 HIGH 7.8 UPGRADE A malicious server can crash the OpenAFS cache manager and other client utilities, and possibly execute arbitr
CVE-2024-10396 MEDIUM 6.5 UPGRADE An authenticated user can provide a malformed ACL to the fileserver's StoreACL RPC, causing the fileserver to

References

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