CVE-2026-31391

MEDIUMNVD 5.5

5.5

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

crypto: atmel-sha204a - Fix OOM ->tfm_count leak

If memory allocation fails, decrement ->tfm_count to avoid blocking future reads.

CVSS v3: 5.5
EG Score: 0.0(none)
EPSS: 3.5%
KEV: Not listed

Published

April 3, 2026

Last Modified

May 26, 2026

References (7)

416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1ab70c260cf16f931a728b2cb63fff5f38c814d8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2bfc83cee05f8b9604502df27d94e8e2b4a3dbf1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/66ee9c1c3575b5d6afc340faca00fd40ed5b7ad9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6f502049a96b368ea6646c49d9520d6f69a101fa
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c2d0c45dbb9eb272385ae919b17eef5a5318d3f8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d240b079a37e90af03fd7dfec94930eb6c83936e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fd262dc6d758232511127372eba866b7600739ba

Vendor Advisories for CVE-2026-31391(1)

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

GHSA-8v35-jwfj-qhmg
GitHub Security AdvisoriesMedium
In the Linux kernel, the following vulnerability has been resolved: crypto: atmel-sha204a - Fix...

Data Freshness Timeline

(refreshed 17× in last 7d / 20× 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
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2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
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2026-05-24 16:59 UTCepss_batch
2026-05-23 15:21 UTCepss_batch
2026-05-22 21:16 UTCepss_batch

Frequently asked(5)

What is CVE-2026-31391?

CVE-2026-31391 is a medium vulnerability published on April 3, 2026. In the Linux kernel, the following vulnerability has been resolved: crypto: atmel-sha204a - Fix OOM ->tfm_count leak If memory allocation fails, decrement ->tfm_count to avoid blocking future reads.

When was CVE-2026-31391 disclosed?

CVE-2026-31391 was first published in the National Vulnerability Database on April 3, 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-2026-31391 actively exploited?

CVE-2026-31391 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-31391?

CVE-2026-31391 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-2026-31391?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31391, 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-2026-31391

📅 Published

🔄 Last Modified

🔗 References (7)

📣 Vendor Advisories for CVE-2026-31391(1)