CVE-2020-26883
Description
Play Framework 2.6.0 through 2.8.2 is vulnerable to stack consumption via unbounded recursion when parsing crafted JSON documents.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Play Framework 2.6.0 through 2.8.2 is vulnerable to stack consumption via unbounded recursion when parsing crafted JSON documents.
Vulnerability
CVE-2020-26883 is a denial-of-service vulnerability in Play Framework versions 2.6.0 through 2.8.2. The root cause is unbounded recursion during the parsing of specially crafted JSON documents, leading to excessive stack consumption [1].
Exploitation
Exploitation occurs remotely without authentication, as an attacker can send a malicious JSON payload as a form field to a Play application. The vulnerability specifically impacts applications using the PlayJava API flavor [3].
Impact
Successful exploitation causes uncontrolled recursion, exhausting the server's stack and resulting in a denial-of-service condition. No confidentiality or integrity impact is expected, but the availability impact is high [3].
Mitigation
Play Framework has fixed this issue in versions 2.8.3 and 2.7.6. Version 2.6.x is end-of-support and will not receive a patch; users should upgrade to a supported release immediately [2][3].
AI Insight generated on May 21, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
com.typesafe.play:playMaven | >= 2.6.0, < 2.7.6 | 2.7.6 |
com.typesafe.play:playMaven | >= 2.8.0, < 2.8.3 | 2.8.3 |
com.typesafe.play:play-javaMaven | >= 2.6.0, < 2.7.6 | 2.7.6 |
com.typesafe.play:play-javaMaven | >= 2.8.0, < 2.8.3 | 2.8.3 |
Affected products
3- Play Framework/Play Frameworkdescription
- ghsa-coords2 versions
>= 2.6.0, < 2.7.6+ 1 more
- (no CPE)range: >= 2.6.0, < 2.7.6
- (no CPE)range: >= 2.6.0, < 2.7.6
Patches
0No patches discovered yet.
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
5- github.com/advisories/GHSA-p8p6-rcp6-4mrmghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2020-26883ghsaADVISORY
- github.com/playframework/playframework/pull/10495ghsaWEB
- www.playframework.com/security/vulnerabilitymitrex_refsource_MISC
- www.playframework.com/security/vulnerability/CVE-2020-26883-JsonParseUncontrolledRecursionghsax_refsource_MISCWEB
News mentions
0No linked articles in our index yet.