CVE catalog

CVE-2021-27290

node-ssri affected and fixed versions

ssri 5.2.2-8.0.0, fixed in 8.0.1, processes SRIs using a regular expression which is vulnerable to a denial of service. Malicious SRIs could take an extremely long time to process, leading to denial of service. This issue only affects consumers using the strict option.

Severity: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Mar 12, 2021, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 4.72% · Oct 27, 2026

Projects and upstream resources

[node-ssri][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / release	Package	Version	Status	Source
Debiantrixie	node-ssri	`8.0.1-1`	FixedDistribution-reported fixed boundary	[CVE-2021-27290]
Debiantrixie	node-ssri	`9.0.1-3`	Fixed	[CVE-2021-27290]
Debiansid	node-ssri	`8.0.1-1`	FixedDistribution-reported fixed boundary	[CVE-2021-27290]
Debiansid	node-ssri	`9.0.1-6`	Fixed	[CVE-2021-27290]
Debianforky	node-ssri	`8.0.1-1`	FixedDistribution-reported fixed boundary	[CVE-2021-27290]
Debianforky	node-ssri	`9.0.1-6`	Fixed	[CVE-2021-27290]
Debianbookworm	node-ssri	`8.0.1-1`	FixedDistribution-reported fixed boundary	[CVE-2021-27290]
Debianbookworm	node-ssri	`9.0.1-2`	Fixed	[CVE-2021-27290]

Showing 8 fix observations. All 13 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
Alpine3.13	nodejs	`14.16.1-r1`	UnknownSource applicability is not established	[ALPINE-CVE-2021-27290]Oct 23, 2026, 5:17:56 PM UTC
Debianbookworm	node-ssri	`8.0.1-1`	FixedDistribution-reported fixed boundary	[CVE-2021-27290]
Debianbookworm	node-ssri	`9.0.1-2`	Fixed	[CVE-2021-27290]
Debianforky	node-ssri	`8.0.1-1`	FixedDistribution-reported fixed boundary	[CVE-2021-27290]
Debianforky	node-ssri	`9.0.1-6`	Fixed	[CVE-2021-27290]
Debiansid	node-ssri	`8.0.1-1`	FixedDistribution-reported fixed boundary	[CVE-2021-27290]
Debiansid	node-ssri	`9.0.1-6`	Fixed	[CVE-2021-27290]
Debiantrixie	node-ssri	`8.0.1-1`	FixedDistribution-reported fixed boundary	[CVE-2021-27290]
Debiantrixie	node-ssri	`9.0.1-3`	Fixed	[CVE-2021-27290]
Ubuntu20.04	node-ssri	`5.2.4-2`	UnknownSource applicability is not established	[UBUNTU-CVE-2021-27290]Oct 24, 2025, 4:50:11 AM UTC
Ubuntu20.04	node-ssri	`6.0.1-2`	UnknownSource applicability is not established	[UBUNTU-CVE-2021-27290]Oct 24, 2025, 4:50:11 AM UTC
Ubuntu20.04	node-ssri	`7.1.0-2`	UnknownSource applicability is not established	[UBUNTU-CVE-2021-27290]Oct 24, 2025, 4:50:11 AM UTC
Ubuntu22.04	node-ssri	`8.0.1-2`	UnknownSource applicability is not established	[UBUNTU-CVE-2021-27290]Oct 24, 2025, 4:50:11 AM UTC

Original provider fields

{
  "package_releases": [
    {
      "name": "node-ssri",
      "status": "fixed",
      "release": "sid",
      "version": "9.0.1-6"
    },
    {
      "name": "node-ssri",
      "status": "fixed",
      "release": "forky",
      "version": "9.0.1-6"
    },
    {
      "name": "node-ssri",
      "status": "fixed",
      "release": "trixie",
      "version": "9.0.1-3"
    },
    {
      "name": "node-ssri",
      "status": "fixed",
      "release": "bookworm",
      "version": "9.0.1-2"
    }
  ],
  "fixed_versions": [
    {
      "bug": 985841,
      "name": "node-ssri",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "8.0.1-1"
    },
    {
      "bug": 985841,
      "name": "node-ssri",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "8.0.1-1"
    },
    {
      "bug": 985841,
      "name": "node-ssri",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "8.0.1-1"
    },
    {
      "bug": 985841,
      "name": "node-ssri",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": "8.0.1-1"
    }
  ],
  "distribution_packages": [
    {
      "name": "nodejs",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "14.16.1-r1"
            }
          ]
        }
      ],
      "release": "3.13",
      "versions": [],
      "ecosystem": "apk",
      "provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2021-27290",
      "fixed_version": "14.16.1-r1",
      "provider_source": "pypi",
      "provider_record_id": "ALPINE-CVE-2021-27290",
      "provider_updated_at": "2026-10-23T17:17:56.165371043Z",
      "applicability_unknown": true
    },
    {
      "name": "node-ssri",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "20.04",
      "versions": [
        "5.2.4-2",
        "6.0.1-2",
        "7.1.0-2"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-27290",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2021-27290",
      "provider_updated_at": "2025-10-24T04:50:11Z",
      "applicability_unknown": true
    },
    {
      "name": "node-ssri",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "22.04",
      "versions": [
        "8.0.1-2"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-27290",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2021-27290",
      "provider_updated_at": "2025-10-24T04:50:11Z",
      "applicability_unknown": true
    }
  ]
}

[Debian bug #985841]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[node-ssri]Unknown
Details (2)
- 9.0.1-2 · all · bookworm
  Fixed · Fixed: 8.0.1-1
  dsa · node-ssri · debian · bookworm; dsa · node-ssri · debian · 12
- 9.0.1-2 · all · bookworm
  Fixed · Fixed: 8.0.1-1
  dsa · node-ssri · debian · bookworm; dsa · node-ssri · debian · 12

[Debian 13 (Trixie)]

[node-ssri]Unknown
Details (2)
- 9.0.1-3 · all · trixie
  Fixed · Fixed: 8.0.1-1
  dsa · node-ssri · debian · 13
- 9.0.1-3 · all · trixie
  Fixed · Fixed: 8.0.1-1
  dsa · node-ssri · debian · 13

Observed: Oct 23, 2026, 5:55:20 PM UTC

References

[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]