CVE-2026-43394

MEDIUMNVD 5.5

5.5

In the Linux kernel, the following vulnerability has been resolved:

nfsd: Fix cred ref leak in nfsd_nl_listener_set_doit().

nfsd_nl_listener_set_doit() uses get_current_cred() without put_cred().

As we can see from other callers, svc_xprt_create_from_sa() does not require the extra refcount.

nfsd_nl_listener_set_doit() is always in the process context, sendmsg(), and current->cred does not go away.

Let's use current_cred() in nfsd_nl_listener_set_doit().

CVSS v3: 5.5
EG Score: 0.0(none)
EPSS: 2.2%
KEV: Not listed

Published

May 8, 2026

Last Modified

May 26, 2026

References (4)

416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/019debe5851d7355bea9ff0248cc317878924d8f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/02e87ec0bc706cb93fa47b43d18c4d10102c7d54
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/92978c83bb4eef55d02a6c990c01c423131eefa7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cba413765376bb466035c9160fa3130402971e2c

Vendor Advisories for CVE-2026-43394(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

GHSA-h5f4-6rm7-58wm
GitHub Security AdvisoriesMedium
In the Linux kernel, the following vulnerability has been resolved: nfsd: Fix cred ref leak in...

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-401Missing Release of Memory after Effective Lifetime (Memory Leak)

Data Freshness Timeline

(refreshed 12× in last 7d / 17× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-21 22:43 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 13:38 UTCEG score recompute
2026-05-20 13:38 UTCGHSA enrichment
2026-05-20 11:22 UTCepss_batch

Frequently asked(5)

What is CVE-2026-43394?

CVE-2026-43394 is a medium vulnerability published on May 8, 2026. In the Linux kernel, the following vulnerability has been resolved: nfsd: Fix cred ref leak in nfsdnllistenersetdoit(). nfsdnllistenersetdoit() uses getcurrentcred() without put_cred(). As we can see from other callers, svcxprtcreatefromsa() does not require the extra refcount.…

When was CVE-2026-43394 disclosed?

CVE-2026-43394 was first published in the National Vulnerability Database on May 8, 2026, with the most recent update on May 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-43394 actively exploited?

CVE-2026-43394 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-43394?

CVE-2026-43394 has a CVSS v3 base score of 5.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 0.0.

How do I remediate CVE-2026-43394?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43394, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2026-43394

📅 Published

🔄 Last Modified

🔗 References (4)

📣 Vendor Advisories for CVE-2026-43394(1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)