Jackson-databind Remote Code Execution Vulnerability (CVE-2019-12384) Threat Alert

Jackson-databind Remote Code Execution Vulnerability (CVE-2019-12384) Threat Alert

agosto 6, 2019 | Adeline Zhang


Recently, a security researcher discovered a vulnerability (CVE-2019-12384) in jackson-databind, noting that when certain conditions are met, an attacker, via a malicious request, could bypass the blacklist restriction and remotely execute code in an affected server during deserialization.



NSFOCUS’s Alert Level: [Blue]

For the definition of NSFOCUS’s alert levels, see “Description of NSFOCUS’s Security Alert Levels.”

Affected Versions

  • jackson-databind 2.x <= 2.9.9

Unaffected Versions

  • jackson-databind


The vendor has fixed this vulnerability in jackson-databind V2.9.9.1 and users are advised to upgrade as soon as possible.

Besides, users can disable enableDefaultTyping for temporary protection.



Description of NSFOCUS’s Security Alert Levels

Level Description Delivery of Technical Analysis Result Availability of Detection & Protection Rule Update
Red The vulnerability has an extensive and damaging impact, and is easy to exploit. Within 12 hours Within 16 hours
Orange The vulnerability has a comparatively extensive and damaging impact, and is comparatively easy to exploit. Within 12 hours Within 16 hours
Yellow The vulnerability has a controllable impact within a controllable scope, and is difficult to exploit. Within 12 hours Within 16 hours
Blue The vulnerability has a minor impact within a small scope, and is very difficult to exploit. On a weekly routine


This advisory is only used to describe a potential risk. NSFOCUS does not provide any commitment or promise on this advisory. NSFOCUS and the author will not bear any liability for any direct and/or indirect consequences and losses caused by transmitting and/or using this advisory. NSFOCUS reserves all the rights to modify and interpret this advisory. Please include this statement paragraph when reproducing or transferring this advisory. Do not modify this advisory, add/delete any information to/from it, or use this advisory for commercial purposes without permission from NSFOCUS.


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