CVE-2022-39237

criticalpriority · track · 39OT risk · elevatedEPSS 0.007 · 51 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.66% (51st) EPSS

CVSS 9.8 · critical

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-23

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.3–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.16.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:Lsecondary · ENISA EU

v3.16.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:Lsecondary · security-advisories@github.comexploitability 2.8 · impact 3.4

v3.16.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:Lsecondary · OSV

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-327USprimaryCWE-327USCWE-347USCWE-347US

affected products (3)

Products and version ranges known to be affected.

sylabs sif≤ < 2.8.1enisa_euvdEU
sylabs singularity image format< 2.8.1nvdUScpe:2.3:a:sylabs:singularity_image_format:*:*:*:*:*:*:*:*
Go github.com/sylabs/sif/v2< 2.8.1osvUSpkg:golang/github.com/sylabs/sif/v2

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-m5m3-46gj-wch8SIF's Digital Signature Hash Algorithms Not Validated2022-10-06ghsa · osvUS
### Impact The `github.com/sylabs/sif/v2/pkg/integrity` package does not verify that the hash algorithm(s) used are cryptographically secure when verifying digital signatures. ### Patches A patch is available in version >= v2.8.1 of the module. Users are encouraged to upgrade. The patch is commit https://github.com/sylabs/sif/commit/07fb86029a12e3210f6131e065570124605daeaa ### Workarounds Users may independently validate that the hash algorithm(s) used for metadata digest(s) and signature hash are cryptographically secure. ### References * [CVE-2004-2761](https://nvd.nist.gov/vuln/detail/cve-2004-2761) * [CVE-2005-4900](https://nvd.nist.gov/vuln/detail/cve-2005-4900) ### For more information If you have any questions or comments about this advisory: * Open an issue in [github.com/sylabs/sif](https://github.com/sylabs/sif/issues/new) * Email us at [security@sylabs.io](mailto:security@sylabs.io)
GO-2022-1045Improper validation of signature hash algorithms in github.com/sylabs/sif/v22022-10-21vendor · osvUS
The Singularity Image Format (SIF) reference implementation does not verify that the hash algorithm(s) used are cryptographically secure when verifying digital signatures.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2022-10-06modified 2026-06-17

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+908 more

references (12)

External citations — patches, advisories, analysis.

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