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Vulnerability Database · Debian · Package report

bison: vulnerability history, versions and safety

bison is a package in the Debian ecosystem. Vulert records 9 vulnerabilities for it across 4 releases, from Jun 2020 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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9 vulnerabilities recorded U9
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6 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 29 Jul 2026.

See the disclosure history →
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0 malicious-package vulnerabilities

No published version shipped hostile code.

See all bison vulnerabilities

Vulert verdict on bison i

Updated on 23 Oct 2026

Careful: 6 of the 9 vulnerabilities Vulert records for this package have no fix yet. Plan around those, or apply the workaround listed for each. The rest have a fixed version to move to.

Long-term outlook: usable, but needs attention 9 vulnerabilities on record across 6 years, 2 in the last year.

What to do: Plan around the 6 vulnerabilities with no published fix: each lists the affected range and any workaround that reduces exposure. No fix yet: Vulert alerts you the moment one is published. Monitor it with Vulert →

  • Vulnerabilities on record 9 over 6 years · 2 in the last year i
  • Latest disclosure 29 Jul 2026 i
  • Highest CVSS 5.5 i
  • With no published fix 6 i

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01 Versions

Which versions are affected

Every version Vulert holds for bison, 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.

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Version Vulert vulnerabilities Fix published Details
2:3.8.2+dfsg-1 U6 No Details →
2:3.8.1+dfsg-1 U6 No Details →
2:3.7.6+dfsg-1 U6 No Details →
2:3.7.5+dfsg-1 U6 No Details →

Newest 4 of 4 versions on record. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2020 3
  • 2025 4
  • 2026 2

Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 2 of the 9 were recorded in the last 12 months.

03 Vulnerabilities

Recorded vulnerabilities for bison

The 5 most severe of 9 vulnerabilities recorded for this package

Search all 9 in the database →
Vulnerability Severity Fixed version ↓ Disclosed ↓
Denial of Service Vulnerability in GNU Bison 5.5 medium 2:3.6.1+dfsg-1 15 Jun 2020
Problematic Assertion Vulnerability in GNU Bison: CVE-2025-8733 N/A unrated No fix published 08 Aug 2025
Double Free Vulnerability in GNU Bison: CVE-2025-8734 N/A unrated No fix published 08 Aug 2025
Denial of Service Vulnerability in Bison Package - CVE-2020-14150 N/A unrated 2:3.6.1+dfsg-1 15 Jun 2020
Use-After-Free Vulnerability in Bison Package: CVE-2020-24240 N/A unrated 2:3.7.2+dfsg-1 25 Aug 2020

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 bison

Is bison safe to use?

Vulert records 9 vulnerabilities for bison in Debian: 0 critical, 0 high, 0 medium and 0 low, plus 9 not yet rated. 6 of them have no published fix yet, so those are the ones to avoid or mitigate.

How many vulnerabilities does bison have?

9 vulnerabilities are recorded for bison in the Debian ecosystem: 0 critical, 0 high, 0 medium and 0 low, plus 9 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 bison vulnerabilities disclosed?

2 vulnerabilities were recorded for bison in the last 12 months, and the oldest entry in this database dates to 15 Jun 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 bison 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 bison for upcoming vulnerabilities?

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