How severe is CVE-2022-39237?

CVE-2022-39237 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2022-39237 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-39237?

CVE-2022-39237 affects Sylabs Singularity Image Format. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-39237?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-39237 published?

CVE-2022-39237 was published on 2022-10-06 and last updated on 2026-06-17.

CVE-2022-39237

CVE-2022-39237 is a medium-severity vulnerability in Sylabs Singularity Image Format with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-327.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-327
Affected product: Sylabs Singularity Image Format
Published: 2022-10-06
Last modified: 2026-06-17

Description

syslabs/sif is the Singularity Image Format (SIF) reference implementation. In versions prior to 2.8.1the `github.com/sylabs/sif/v2/pkg/integrity` package did not verify that the hash algorithm(s) used are cryptographically secure when verifying digital signatures. A patch is available in version >= v2.8.1 of the module. Users are encouraged to upgrade. Users unable to upgrade may independently validate that the hash algorithm(s) used for metadata digest(s) and signature hash are cryptographically secure.

Frequently asked questions

What is CVE-2022-39237?: syslabs/sif is the Singularity Image Format (SIF) reference implementation. In versions prior to 2.8.1the `github.com/sylabs/sif/v2/pkg/integrity` package did not verify that the hash algorithm(s) used are cryptographically secure when verifying digital signatures. A patch is available in version >= v2.8.1 of the module. Users are encouraged to upgrade. Users unable to upgrade may independently validate that the hash algorithm(s) used for metadata digest(s) and signature hash are cryptographically secure.
How severe is CVE-2022-39237?: CVE-2022-39237 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2022-39237 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-39237?: CVE-2022-39237 affects Sylabs Singularity Image Format. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-39237?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-39237 published?: CVE-2022-39237 was published on 2022-10-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sylabs:singularity_image_format:*:*:*:*:*:*:*:*

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