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TI-2020-10831 Aliases CVE-2020-13845GHSA-pmfr-63c2-jr5c

Sylabs Singularity 3.0 through 3.5 has Improper Validation of an Integrity Check Value.

Priority LOW 33CWE-347Published · Updated

Key facts

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

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

Summary

Sylabs Singularity 3.0 through 3.5 has Improper Validation of an Integrity Check Value. Image integrity is not validated when an ECL policy is enforced. The fingerprint required by the ECL is compared against the signature object descriptor(s) in the SIF file, rather than to a cryptographically validated signature.

Why it matters now

EPSS 0.00517 44th percentileScored 2026-11-07
Fix Fixed github.com/sylabs/singularity (Go): 3.6.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—github.com/sylabs/singularity (Go)3.0.0 to before 3.6.03.6.0Patch availableGHSA-pmfr-63c2-jr5c
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • github.com/sylabs/singularity (Go) Vendor— Affected 3.0.0 to before 3.6.0 Fixed in 3.6.0 Patch available GHSA-pmfr-63c2-jr5c

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sylabs:singularity:*:*:*:*:*:*:*:*3.0.0 – 3.5.0Vulnerablesylabs
  • cpe:2.3:a:sylabs:singularity:*:*:*:*:*:*:*:* Versions 3.0.0 – 3.5.0 Vulnerable ·sylabs

Remediation

  • Fix · GHSA-pmfr-63c2-jr5c github.com/sylabs/singularity (Go) Fixed in 3.6.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-13845
  2. 2026-10-03 Alias added: GHSA-pmfr-63c2-jr5c

References

Advisory 6

  • TI-2021-12997 Sylabs Singularity 3.5.x and 3.6.x, and SingularityPRO before 3.5-8, has an Incorrect… CVSS 3.1CRITICAL 9.8
  • TI-2021-12634 Sylabs Singularity Enterprise through 1.6.2 has Insufficient Entropy in a nonce. CVSS 3.1CRITICAL 9.8
  • TI-2020-12001 Path traversal and files overwrite with unsquashfs CVSS 3.1CRITICAL 9.3
  • TI-2020-15301 Sylabs Singularity through 3.6.2 has Insecure Permissions on temporary directories used… CVSS 3.1HIGH 8.8
  • TI-2019-08462 An issue was discovered in Singularity 3.1.0 to 3.2.0-rc2, a malicious user with… CVSS 3.1HIGH 8.8
  • TI-2020-15300 Sylabs Singularity 3.2.0 through 3.6.2 has Insecure Permissions on temporary directories… CVSS 3.1HIGH 8.1
See all 14 →

Sources

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