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Vulnerability Database · Ubuntu · Package report

squid: vulnerability history, versions and safety

squid is a package in the Ubuntu ecosystem. Vulert records 8 vulnerabilities for it across 18 releases, from Aug 2020 to Apr 2024. Each vulnerability names the versions it affects, the fixed version to move to, and a workaround where no fix has been published.

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8 vulnerabilities recorded U8
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0 with no fix published

Every vulnerability has a patched version to move to.

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0 in the last 12 months

Nothing new recorded in the last year.

See the disclosure history →
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0 malicious-package vulnerabilities

No published version shipped hostile code.

See all squid vulnerabilities

Vulert verdict on squid i

Updated on 22 Oct 2026

Every vulnerability Vulert records for this package has a fix, and the newest was recorded 23 Apr 2024. Apply the fixes listed below and you are clear.

Long-term outlook: usable, with an upgrade 8 vulnerabilities on record across 3 years, none in the last year.

What to do: Move the affected dependencies to the fixed versions listed below, then keep the package monitored so the next vulnerability reaches you. Fix it, then keep watch: Vulert alerts you when a new vulnerability affects the version you run. Monitor it with Vulert →

  • Vulnerabilities on record 8 over 3 years · 0 in the last year i
  • Latest disclosure 23 Apr 2024 i
  • Highest CVSS 6.5 i
  • With no published fix 0 i

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01 Versions

Which versions are affected

Every version Vulert holds for squid, newest first, with the vulnerabilities that name it. A version with a count of zero has no recorded vulnerabilities; open a version to see the vulnerabilities it is exposed to.

Newest 18 of 18 versions on record. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2020 1
  • 2021 1
  • 2022 1
  • 2023 1
  • 2024 4

Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 0 of the 8 were recorded in the last 12 months.

03 Vulnerabilities

Recorded vulnerabilities for squid

The 5 most severe of 8 vulnerabilities recorded for this package

Search all 8 in the database →
Vulnerability Severity Fixed version ↓ Disclosed ↓
Denial of Service Vulnerability in Squid Package: CVE-2021-28662 6.5 medium 4.10-1ubuntu1.4 27 May 2021
Sensitive Information Exposure in Squid Proxy Server 6.5 medium 4.10-1ubuntu1.7 23 Sep 2022
Critical Squid Vulnerabilities Exposed: Cache Poisoning and Denial of Service Risks N/A unrated 4.10-1ubuntu1.2 27 Aug 2020
Critical Vulnerabilities in Squid Package: Denial of Service and HTTP Request Smuggling Risks N/A unrated 4.10-1ubuntu1.8 21 Nov 2023
Critical Denial of Service Vulnerabilities in Squid Package N/A unrated 4.10-1ubuntu1.9 23 Jan 2024

Vulnerability wrong, a fix missing, or a package we should cover? Report it and we will fix the record. Report Vulnerability Provide Feedback

Updated: 22/Oct/2026 · Vulnerabilities in our DB: 524173

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Questions

About squid

Is squid safe to use?

Vulert records 8 vulnerabilities for squid in Ubuntu: 0 critical, 0 high, 0 medium and 0 low, plus 8 not yet rated. Every one of them has a published fix, so the practical answer is to run a supported release and keep it patched.

How many vulnerabilities does squid have?

8 vulnerabilities are recorded for squid in the Ubuntu ecosystem: 0 critical, 0 high, 0 medium and 0 low, plus 8 not yet rated. The ledger on this page lists the same counts next to the date of the most recent disclosure.

How often are new squid vulnerabilities disclosed?

0 vulnerabilities were recorded for squid in the last 12 months, and the oldest entry in this database dates to 27 Aug 2020. Recency matters more than a lifetime total: it shows how actively new issues are being disclosed for the package you are considering.

Which versions of squid are affected?

Each vulnerability on this page lists the affected version range and the fixed version to move to. Open the vulnerability for the version you actually run — fixes are specific to a release line, not to the package as a whole.

How do I monitor squid for upcoming vulnerabilities?

Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the squid version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.