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Description
In Eclipse Parsson before versions 1.1.4 and 1.0.5, Parsing JSON from untrusted sources can lead malicious actors to exploit the fact that the built-in support for parsing numbers with large scale in Java has a number of edge cases where the input text of a number can lead to much larger processing time than one would expect.
To mitigate the risk, parsson put in place a size limit for the numbers as well as their scale.
Basic information
Type
reviewed
Severity
medium Advisory on GitHub
Open advisory ↗ Repository advisory
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Source code
Not specified Published (advisory)
2023-11-03 09:32:49 UTC
Updated
2023-11-14 21:48:18 UTC
GitHub reviewed
2023-11-03 19:47:25 UTC
NVD published
2023-11-03
EPSS Score
Score
Percentile
0.15%
35.56%
CVSS Scores
Base score
Version
Severity
Vector
5.9
3.1
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CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
CWEs
CWE id
Name
CWE-20
Improper Input Validation
CWE-834
Excessive Iteration
Affected packages (2)
Vulnerable version ranges and first patched releases as published by GitHub.
Ecosystem
Package
Vulnerable range
First patched
Vulnerable functions
maven
org.eclipse.parsson:project >= 1.1.0, < 1.1.4
1.1.4
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maven
org.eclipse.parsson:project < 1.0.5
1.0.5
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cvelogic
Threat Intelligence