Vulnerability Database · Maven · Package report

com.alibaba:fastjson: vulnerability history, versions and safety

com.alibaba:fastjson is a package in the Maven ecosystem. Vulert records 4 vulnerabilities for it across 120 releases, from Oct 2018 to Jul 2026. 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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4 vulnerabilities recorded C3 H1
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1 with no fix published

No patched version yet — these are the ones to plan around.

See the unfixed vulnerabilities →
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2 in the last 12 months

Most recent disclosure 23 Jul 2026.

See the disclosure history →
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0 malicious-package vulnerabilities

No published version shipped hostile code.

Vulert verdict on com.alibaba:fastjson 2.0.66 i

Updated on 23 Oct 2026

Careful: 2.0.66 has 1 known vulnerability, and 1 has no fix yet. Use an earlier safe version, or the workaround listed for each one.

Package health score 60/100
  • Security Some issues to review
  • Maintenance Sustainable
  • Popularity Widely used
  • Community Moderate

The current release has a vulnerability with no published fix, which caps this score.

What to do: Pin an earlier, unaffected release if you can, and apply the workaround each vulnerability lists until a fix is published. No fix yet: Vulert alerts you the moment one is published. Monitor it with Vulert →

  • Current release 2.0.66 — affected i
  • Vulnerabilities on record 4 over 7 years · 2 in the last year i
  • Latest disclosure 23 Jul 2026 i
  • Highest CVSS 10.0 i
  • With no published fix 1 i
  • Depended on by 111 packages i
  • Stars 4,425 i
  • OpenSSF scorecard 5/10 i
  • Last release this month i
  • Licence Apache-2.0 i

Version list, release dates, licence and dependants published by Maven Central, refreshed 23 Oct 2026. Licence information is not legal advice.

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01 Versions

Which versions are affected

Every version Vulert tracks for com.alibaba:fastjson, newest first, with the vulnerabilities recorded against each one. A version showing none has no vulnerability in the Vulert database — open it for the full picture on that release.

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Version Released Vulert vulnerabilities Licence Fix published Details
2.0.66 18 Oct 2026 C1 Apache-2.0 No Details →
2.0.65 02 Sep 2026 C1 Apache-2.0 No Details →
2.0.64 02 Aug 2026 C1 Apache-2.0 No Details →
1.2.84 29 Jul 2026 C1 Apache-2.0 No Details →
2.0.63 29 Jul 2026 C1 Apache-2.0 No Details →
2.0.62 05 May 2026 C1 Apache-2.0 No Details →
2.0.61 07 Feb 2026 C1 Apache-2.0 No Details →
2.0.60 25 Oct 2025 C1 Apache-2.0 No Details →
2.0.59 21 Sep 2025 C1 Apache-2.0 No Details →
2.0.58 30 Jul 2025 C1 Apache-2.0 No Details →
2.0.57 31 Mar 2025 C1 Apache-2.0 No Details →
2.0.56 22 Feb 2025 C1 Apache-2.0 No Details →
2.0.55 14 Feb 2025 C1 Apache-2.0 No Details →
2.0.54 11 Jan 2025 C1 Apache-2.0 No Details →
2.0.53 16 Sep 2024 C1 Apache-2.0 No Details →
2.0.52 14 Jul 2024 C1 Apache-2.0 No Details →
2.0.51 01 Jun 2024 C1 Apache-2.0 No Details →
2.0.50 12 May 2024 C1 Apache-2.0 No Details →
2.0.49 14 Apr 2024 C1 Apache-2.0 No Details →
2.0.48 25 Mar 2024 C1 Apache-2.0 No Details →
2.0.47 23 Feb 2024 C1 Apache-2.0 No Details →
2.0.46 29 Jan 2024 C1 Apache-2.0 No Details →
1.1.70.android_noneautotype 09 Jan 2024 C2 Apache-2.0 Yes Details →
2.0.45 07 Jan 2024 C1 Apache-2.0 No Details →
2.0.44 24 Dec 2023 C1 Apache-2.0 No Details →
2.0.43 03 Dec 2023 C1 Apache-2.0 No Details →
2.0.42 05 Nov 2023 C1 Apache-2.0 No Details →
2.0.41 06 Oct 2023 C1 Apache-2.0 No Details →
2.0.40 03 Sep 2023 C1 Apache-2.0 No Details →
1.1.77.android_noneautotype 27 Aug 2023 C2 Apache-2.0 Yes Details →
2.0.39 14 Aug 2023 C1 Apache-2.0 No Details →
2.0.38 29 Jul 2023 C1 Apache-2.0 No Details →
1.1.76.android_noneautotype 23 Jul 2023 C2 Apache-2.0 Yes Details →
1.1.76.android 23 Jul 2023 C2 Apache-2.0 Yes Details →
2.0.37 22 Jul 2023 C1 Apache-2.0 No Details →
2.0.36 18 Jul 2023 C1 Apache-2.0 No Details →
2.0.35 08 Jul 2023 C1 Apache-2.0 No Details →
2.0.34 18 Jun 2023 C1 Apache-2.0 No Details →
2.0.33 28 May 2023 C1 Apache-2.0 No Details →
2.0.32 15 May 2023 C1 Apache-2.0 No Details →
2.0.31 07 May 2023 C1 Apache-2.0 No Details →
2.0.30 06 May 2023 C1 Apache-2.0 No Details →
2.0.29 22 Apr 2023 C1 Apache-2.0 No Details →
2.0.28 15 Apr 2023 C1 Apache-2.0 No Details →
2.0.27 08 Apr 2023 C1 Apache-2.0 No Details →
2.0.26 19 Mar 2023 C1 Apache-2.0 No Details →
2.0.25 12 Mar 2023 C1 Apache-2.0 No Details →
2.0.24 18 Feb 2023 C1 Apache-2.0 No Details →
2.0.23 14 Jan 2023 C1 Apache-2.0 No Details →
2.0.22 30 Dec 2022 C1 Apache-2.0 No Details →
2.0.21.graal 10 Dec 2022 C1 Apache-2.0 No Details →
2.0.21.android 10 Dec 2022 C1 Apache-2.0 No Details →
2.0.21 10 Dec 2022 C1 Apache-2.0 No Details →
2.0.20.android 27 Nov 2022 C1 Apache-2.0 No Details →
2.0.20.graal 27 Nov 2022 C1 Apache-2.0 No Details →
2.0.20 27 Nov 2022 C1 Apache-2.0 No Details →
2.0.19.graal 12 Nov 2022 C1 Apache-2.0 No Details →
2.0.19.android 12 Nov 2022 C1 Apache-2.0 No Details →
2.0.19 12 Nov 2022 C1 Apache-2.0 No Details →
2.0.18.android 06 Nov 2022 C1 Apache-2.0 No Details →
2.0.18 06 Nov 2022 C1 Apache-2.0 No Details →
2.0.17.graal 30 Oct 2022 C1 Apache-2.0 No Details →
2.0.17.android 30 Oct 2022 C1 Apache-2.0 No Details →
2.0.17 30 Oct 2022 C1 Apache-2.0 No Details →
2.0.16.graal 22 Oct 2022 C1 Apache-2.0 No Details →
2.0.16.android 22 Oct 2022 C1 Apache-2.0 No Details →
2.0.16 22 Oct 2022 C1 Apache-2.0 No Details →
2.0.15.graal 05 Oct 2022 C1 Apache-2.0 No Details →
2.0.15.android 05 Oct 2022 C1 Apache-2.0 No Details →
2.0.15 05 Oct 2022 C1 Apache-2.0 No Details →
1.2.67_noneautotype2 19 Sep 2022 H1 Apache-2.0 Yes Details →
2.0.14.android 16 Sep 2022 C1 Apache-2.0 No Details →
2.0.14.graal 16 Sep 2022 C1 Apache-2.0 No Details →
2.0.14 16 Sep 2022 C1 Apache-2.0 No Details →
2.0.13.graal 10 Sep 2022 C1 Apache-2.0 No Details →
2.0.13.android 10 Sep 2022 C1 Apache-2.0 No Details →
2.0.13 10 Sep 2022 C1 Apache-2.0 No Details →
2.0.12.graal 20 Aug 2022 C1 Apache-2.0 No Details →
2.0.12.android 20 Aug 2022 C1 Apache-2.0 No Details →
2.0.12 20 Aug 2022 C1 Apache-2.0 No Details →
2.0.11.graal 07 Aug 2022 C1 Apache-2.0 No Details →
2.0.11.android 07 Aug 2022 C1 Apache-2.0 No Details →
2.0.11 07 Aug 2022 C1 Apache-2.0 No Details →
2.0.10 23 Jul 2022 C1 Apache-2.0 No Details →
2.0.10.android 23 Jul 2022 C1 Apache-2.0 No Details →
2.0.10.graal 23 Jul 2022 C1 Apache-2.0 No Details →
2.0.9.android 10 Jul 2022 C1 Apache-2.0 No Details →
2.0.9.graal 10 Jul 2022 C1 Apache-2.0 No Details →
2.0.9 10 Jul 2022 C1 Apache-2.0 No Details →
2.0.8.android 25 Jun 2022 C1 Apache-2.0 No Details →
2.0.8.graal 25 Jun 2022 C1 Apache-2.0 No Details →
2.0.8 25 Jun 2022 C1 Apache-2.0 No Details →
1.2.83_noneautotype 13 Jun 2022 C1 H1 Apache-2.0 No Details →
1.2.50_noneautotype 13 Jun 2022 H1 Apache-2.0 Yes Details →
2.0.7.android 11 Jun 2022 C1 Apache-2.0 No Details →
2.0.7 11 Jun 2022 C1 Apache-2.0 No Details →
2.0.7.graal 11 Jun 2022 C1 Apache-2.0 No Details →
1.2.63_noneautotype 10 Jun 2022 H1 Apache-2.0 Yes Details →
1.1.46_noneautotype 09 Jun 2022 C2 Apache-2.0 Yes Details →
1.1.31_noneautotype 09 Jun 2022 C2 Apache-2.0 Yes Details →
1.1.34_noneautotype 09 Jun 2022 C2 — Yes Details →
1.2.67_noneautotype 09 Jun 2022 H1 — Yes Details →
1.2.75_noneautotype 09 Jun 2022 C1 H1 — No Details →
1.2.72_noneautotype 09 Jun 2022 C1 H1 — No Details →
2.0.6.android 04 Jun 2022 C1 — No Details →
2.0.6.graal 04 Jun 2022 C1 — No Details →
2.0.6 04 Jun 2022 C1 — No Details →
1.2.31_noneautotype 30 May 2022 C1 H1 — Yes Details →
2.0.5.android 28 May 2022 C1 — No Details →
2.0.5.graal 28 May 2022 C1 — No Details →
2.0.5 28 May 2022 C1 — No Details →
1.2.8_noneautotype 26 May 2022 C2 — Yes Details →
1.2.57_noneautotype 25 May 2022 H1 — Yes Details →
1.2.54_noneautotype 25 May 2022 H1 — Yes Details →
1.2.48_noneautotype 25 May 2022 H1 — Yes Details →
1.2.60_noneautotype 25 May 2022 H1 — Yes Details →
1.2.69_noneautotype 25 May 2022 C1 H1 — No Details →
1.2.48.sec09_noneautotype 25 May 2022 H1 — Yes Details →
1.2.52.sec09_noneautotype 25 May 2022 H1 — Yes Details →
1.2.71_noneautotype 25 May 2022 C1 H1 — No Details →

The newest 120 of 359 versions Vulert tracks. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2018 1
  • 2022 1
  • 2026 2

Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 2 of the 4 were recorded in the last 12 months.

03 Vulnerabilities

Recorded vulnerabilities for com.alibaba:fastjson

The 4 most severe of 4 vulnerabilities recorded for this package

Search all 4 in the database →

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

Updated: 23/Oct/2026 · Vulnerabilities in our DB: 524315

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Questions

About com.alibaba:fastjson

Is com.alibaba:fastjson safe to use?

Vulert records 4 vulnerabilities for com.alibaba:fastjson in Maven: 3 critical, 1 high, 0 medium and 0 low. 1 of them has no published fix yet, so that is the one to avoid or mitigate.

What is com.alibaba:fastjson's Vulert package health score?

Vulert scores com.alibaba:fastjson 60/100, which reads as usable, but worth attention. The score weighs the vulnerability record (40), maintenance and release cadence (25), adoption from dependents and stars (20) and community signals such as the OpenSSF scorecard and forks (15). The current release has a vulnerability with no published fix, which caps this score.

Is the latest version of com.alibaba:fastjson affected?

Yes. 2.0.66, the version you would install today, has 1 known vulnerability, and 1 has no published fix yet. Use an earlier unaffected release, or the workaround each vulnerability lists.

How many vulnerabilities does com.alibaba:fastjson have?

4 vulnerabilities are recorded for com.alibaba:fastjson in the Maven ecosystem: 3 critical, 1 high, 0 medium and 0 low. The ledger on this page lists the same counts next to the date of the most recent disclosure.

How often are new com.alibaba:fastjson vulnerabilities disclosed?

2 vulnerabilities were recorded for com.alibaba:fastjson in the last 12 months, and the oldest entry in this database dates to 24 Oct 2018. 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 com.alibaba:fastjson 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 com.alibaba:fastjson for upcoming vulnerabilities?

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