TI-2022-18614 Aliases CVE-2022-39237 GHSA-m5m3-46gj-wch8

Digital Signature Hash Algorithms Not Validated in sylabs/sif

MEDIUM 43CWE-347Published 2022-10-06 · Updated 2025-04-23

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass, Information disclosure
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-347 and CWE-327.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0065 51st percentileScored 2026-11-07

Fix Fixed sif (sylabs): 2.8.1github.com/sylabs/sif/v2 (Go): 2.8.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
sylabs	sif	before 2.8.1	2.8.1	Patch available	CNA
—	github.com/sylabs/sif/v2 (Go)	before 2.8.1	2.8.1	Patch available	GHSA-m5m3-46gj-wch8

sif Vendorsylabs Affected before 2.8.1 Fixed in 2.8.1 Patch available CNA
github.com/sylabs/sif/v2 (Go) Vendor— Affected before 2.8.1 Fixed in 2.8.1 Patch available GHSA-m5m3-46gj-wch8

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:sylabs:singularity_image_format::::::::	before 2.8.1	Vulnerable	sylabs

cpe:2.3:a:sylabs:singularity_image_format:*:*:*:*:*:*:*:* Versions before 2.8.1 Vulnerable ·sylabs

Remediation

Fix · CNA sif (sylabs) Fixed in 2.8.1
Fix · GHSA-m5m3-46gj-wch8 github.com/sylabs/sif/v2 (Go) Fixed in 2.8.1 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2022-39237
2026-10-03 Alias added: GHSA-m5m3-46gj-wch8
2026-10-23 EPSS moved to the 50th–90th percentile

References

Patch 1

https://github.com/sylabs/sif/commit/07fb86029a12e3210f6131e065570124605daeaa

Advisory 5

Other 3

TI-2021-10207 Predictable SIF UUID Identifiers CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences