Vulnerability · CVE-2020-28491
This affects the package com.fasterxml.jackson.dataformat:jackson-dataformat-cbor from 0 and before 2.11.4, from 2.12.0-rc1 and before 2.12.1.
Published Feb 18, 2021 · catalog updated Nov 5, 2026 · This affects the package
Last checked Nov 5, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2020-28491. EPSS is 2.42%. Act only if a listed version of This affects the package is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (This affects the package).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High7.5
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 2.42%
- Remediation
- Advisory link
- Affected products
- Debian:12 jackson-dataformat-cbor · Debian:13 jackson-dataformat-cbor
This affects the package com.fasterxml.jackson.dataformat:jackson-dataformat-cbor from 0 and before 2.11.4, from 2.12.0-rc1 and before 2.12.1. Unchecked allocation of byte buffer can cause a java.lang.OutOfMemoryError exception.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- Debian:12 jackson-dataformat-cbor2.7.8-5, 2.7.8-5.1
- Debian:13 jackson-dataformat-cbor0 → 2.7.8-5.1
How to fix CVE-2020-28491
Upgrade
CVE-2020-28491 lists a fix boundary at 2.7.8-5.1. Compare the installed build with that boundary before you change production.
Version check
Fixed in 2.7.8-5.1 · 2 other ranges on the advisory
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2020-28491. EPSS is 2.42%. Act only if a listed version of This affects the package is installed.
Which versions are affected?
Compare what you have installed with 2.7.8-5, 2.7.8-5.1, 0 → 2.7.8-5.1. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 2.42%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Feb 18, 2021 · Trivy Vulnerability DB
Detected
This affects the package com.fasterxml.jackson.dataformat:jackson-dataformat-cbor from 0 and before 2.11.4, from 2.12.0-rc1 and before 2.12.1. Unchecked allocation of byte buffer can cause a java.lang.OutOfMemoryError exception.
Nov 5, 2026 · Trivy Vulnerability DB
Fix available
jackson-dataformat-cbor fixed in 2.7.8-5.1
Nov 5, 2026 · Trivy Vulnerability DB
Fix available
jackson-dataformat-cbor fixed in 2.7.8-5.1
Nov 5, 2026 · Trivy Vulnerability DB
Updated
This affects the package com.fasterxml.jackson.dataformat:jackson-dataformat-cbor from 0 and before 2.11.4, from 2.12.0-rc1 and before 2.12.1. Unchecked allocation of byte buffer can cause a java.lang.OutOfMemoryError exception.
Sources
- CVE.orgVulnerability recordCVE-2020-28491
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2020-28491
30-day exploitation probability 2.42%
first.org - Trivy Vulnerability DBPackage advisoryDEBIAN-CVE-2020-28491
This affects the package com.fasterxml.jackson.dataformat:jackson-dataformat-cbor from 0 and before 2.11.4, from 2.12.0-rc1 and before 2.12.1. Unchecked allocation of byte buffer can cause a java.lang.OutOfMemoryError exception.
osv.dev
References
Freshness
Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSNov 5, 2026
- CVE.orgNov 5, 2026
- Trivy Vulnerability DBNov 5, 2026