CVE-2025-49128: FasterXML jackson-core · Generation of Error Message Containing Sensitive Information
Affects FasterXML jackson-coreSource CVE Database V5
Not known to be exploited · CVSS 4.0 Medium · fixed in 2.13.0 : update FasterXML jackson-core when convenient.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 33% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.13.0
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 6 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Mavencom.fasterxml.jackson.core/jackson-corepkg:maven/com.fasterxml.jackson.core/jackson-coreOther threats | Affected– | Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available by upgrading jackson-core to version 2.13.0 or later. If upgrading is not immediately feasible, applications should mitigate by disabling the exposure of exception messages to clients and/or disabling source inclusion in exceptions to prevent embedding source content in error messages, thereby avoiding information leakage.
Description
A vulnerability in jackson-core versions from 2.0.0 up to but not including 2.13.0 allows unintended memory content to be included in exception messages. This occurs due to improper handling in the JsonLocation. _appendSourceDesc method when parsing JSON from byte arrays with offsets, potentially exposing sensitive information from pooled or reused buffers. The issue was fixed in version 2.13.0.