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| purl | pkg:deb/debian/jackson-core@2.14.1-1 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
|
VCID-pwnn-qx48-ykae
Aliases: CVE-2025-52999 GHSA-h46c-h94j-95f3 |
jackson-core can throw a StackoverflowError when processing deeply nested data ### Impact With older versions of jackson-core, if you parse an input file and it has deeply nested data, Jackson could end up throwing a StackoverflowError if the depth is particularly large. ### Patches jackson-core 2.15.0 contains a configurable limit for how deep Jackson will traverse in an input document, defaulting to an allowable depth of 1000. Change is in https://github.com/FasterXML/jackson-core/pull/943. jackson-core will throw a StreamConstraintsException if the limit is reached. jackson-databind also benefits from this change because it uses jackson-core to parse JSON inputs. ### Workarounds Users should avoid parsing input files from untrusted sources. |
Affected by 0 other vulnerabilities. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| VCID-395t-bxwj-7fcu | Jackson-core Vulnerable to Memory Disclosure via Source Snippet in JsonLocation ### Overview A flaw in Jackson-core's `JsonLocation._appendSourceDesc` method allows up to 500 bytes of unintended memory content to be included in exception messages. When parsing JSON from a byte array with an offset and length, the exception message incorrectly reads from the beginning of the array instead of the logical payload start. This results in possible **information disclosure** in systems using **pooled or reused buffers**, like Netty or Vert.x. ### Details The vulnerability affects the creation of exception messages like: ``` JsonParseException: Unexpected character ... at [Source: (byte[])...] ``` When `JsonFactory.createParser(byte[] data, int offset, int len)` is used, and an error occurs while parsing, the exception message should include a snippet from the specified logical payload. However, the method `_appendSourceDesc` ignores the `offset`, and always starts reading from index `0`. If the buffer contains residual sensitive data from a previous request, such as credentials or document contents, that data may be exposed if the exception is propagated to the client. The issue particularly impacts server applications using: * Pooled byte buffers (e.g., Netty) * Frameworks that surface parse errors in HTTP responses * Default Jackson settings (i.e., `INCLUDE_SOURCE_IN_LOCATION` is enabled) A documented real-world example is [CVE-2021-22145](https://nvd.nist.gov/vuln/detail/CVE-2021-22145) in Elasticsearch, which stemmed from the same root cause. ### Attack Scenario An attacker sends malformed JSON to a service using Jackson and pooled byte buffers (e.g., Netty-based HTTP servers). If the server reuses a buffer and includes the parser’s exception in its HTTP 400 response, the attacker may receive residual data from previous requests. ### Proof of Concept ```java byte[] buffer = new byte[1000]; System.arraycopy("SECRET".getBytes(), 0, buffer, 0, 6); System.arraycopy("{ \"bad\": }".getBytes(), 0, buffer, 700, 10); JsonFactory factory = new JsonFactory(); JsonParser parser = factory.createParser(buffer, 700, 20); parser.nextToken(); // throws exception // Exception message will include "SECRET" ``` ### Patches This issue was silently fixed in jackson-core version 2.13.0, released on September 30, 2021, via [PR #652](https://github.com/FasterXML/jackson-core/pull/652). All users should upgrade to version 2.13.0 or later. ### Workarounds If upgrading is not immediately possible, applications can mitigate the issue by: 1. **Disabling exception message exposure to clients** — avoid returning parsing exception messages in HTTP responses. 2. **Disabling source inclusion in exceptions** by setting: ```java jsonFactory.disable(JsonFactory.Feature.INCLUDE_SOURCE_IN_LOCATION); ``` This prevents Jackson from embedding any source content in exception messages, avoiding leakage. ### References * [Pull Request #652 (Fix implementation)](https://github.com/FasterXML/jackson-core/pull/652) * [CVE-2021-22145 (Elasticsearch exposure of this flaw)](https://nvd.nist.gov/vuln/detail/CVE-2021-22145) |
CVE-2025-49128
GHSA-wf8f-6423-gfxg |
| Date | Actor | Action | Vulnerability | Source | VulnerableCode Version |
|---|---|---|---|---|---|
| 2026-04-19T05:57:24.887607+00:00 | Debian Importer | Affected by | VCID-pwnn-qx48-ykae | https://security-tracker.debian.org/tracker/data/json | 38.4.0 |
| 2026-04-16T09:25:32.003261+00:00 | Debian Importer | Fixing | VCID-395t-bxwj-7fcu | https://security-tracker.debian.org/tracker/data/json | 38.4.0 |
| 2026-04-11T18:17:25.357861+00:00 | Debian Importer | Fixing | VCID-395t-bxwj-7fcu | https://security-tracker.debian.org/tracker/data/json | 38.3.0 |
| 2026-04-04T18:03:53.111669+00:00 | Debian Importer | Fixing | VCID-395t-bxwj-7fcu | https://security-tracker.debian.org/tracker/data/json | 38.1.0 |