CVE-2026-48082: CWE-770: Allocation of Resources Without Limits or Throttling in open-reception appointment-booking-software
OpenReception's appointment booking software prior to version 1.0.6 has a weakness in its rate-limiting mechanism for unauthenticated clients. The proof-of-work challenge used as a rate limiter is set to a difficulty level that modern hardware can solve very quickly, making it ineffective against automated abuse. Additionally, the throttle mechanism can be bypassed by attackers supplying attacker-controlled values, allowing them to evade per-binding throttling. Version 1.0.6 addresses this issue.
AI Analysis
Technical Summary
The vulnerability in OpenReception appointment-booking-software (CVE-2026-48082) involves allocation of resources without effective limits or throttling (CWE-770). The software uses a SHA-256 proof-of-work challenge with a difficulty of 16 bits as a rate-limiting measure for unauthenticated clients. This difficulty is too low, allowing attackers to solve challenges rapidly and bypass the intended friction. Furthermore, the throttle check uses a binding that includes attacker-controlled values, enabling attackers to generate new throttle keys and circumvent per-binding throttling. This results in ineffective rate limiting and potential automated abuse of the booking flow. The issue is fixed in version 1.0.6.
Potential Impact
The ineffective proof-of-work difficulty and bypassable throttle mechanism allow attackers to automate appointment booking requests with minimal friction. This can lead to resource exhaustion or abuse of the booking system. However, there is no direct confidentiality, integrity, or availability impact beyond low-level denial of service or abuse. The CVSS score is low (3.7) reflecting limited impact.
Mitigation Recommendations
Upgrade to OpenReception appointment-booking-software version 1.0.6 or later, which fixes the ineffective rate-limiting and throttle bypass issues. No other mitigation is indicated or necessary once patched.
CVE-2026-48082: CWE-770: Allocation of Resources Without Limits or Throttling in open-reception appointment-booking-software
Description
OpenReception's appointment booking software prior to version 1.0.6 has a weakness in its rate-limiting mechanism for unauthenticated clients. The proof-of-work challenge used as a rate limiter is set to a difficulty level that modern hardware can solve very quickly, making it ineffective against automated abuse. Additionally, the throttle mechanism can be bypassed by attackers supplying attacker-controlled values, allowing them to evade per-binding throttling. Version 1.0.6 addresses this issue.
CVSS v3.1
Score 3.7low
Affected software
open-reception
appointment-booking-software
pkg:github/open-reception/appointment-booking-softwareRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in OpenReception appointment-booking-software (CVE-2026-48082) involves allocation of resources without effective limits or throttling (CWE-770). The software uses a SHA-256 proof-of-work challenge with a difficulty of 16 bits as a rate-limiting measure for unauthenticated clients. This difficulty is too low, allowing attackers to solve challenges rapidly and bypass the intended friction. Furthermore, the throttle check uses a binding that includes attacker-controlled values, enabling attackers to generate new throttle keys and circumvent per-binding throttling. This results in ineffective rate limiting and potential automated abuse of the booking flow. The issue is fixed in version 1.0.6.
Potential Impact
The ineffective proof-of-work difficulty and bypassable throttle mechanism allow attackers to automate appointment booking requests with minimal friction. This can lead to resource exhaustion or abuse of the booking system. However, there is no direct confidentiality, integrity, or availability impact beyond low-level denial of service or abuse. The CVSS score is low (3.7) reflecting limited impact.
Mitigation Recommendations
Upgrade to OpenReception appointment-booking-software version 1.0.6 or later, which fixes the ineffective rate-limiting and throttle bypass issues. No other mitigation is indicated or necessary once patched.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-20T18:40:45.831Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a750704bf8831d5395f5a70
Added to database: 08/06/2026, 22:13:24 UTC
Last enriched: 08/14/2026, 16:05:37 UTC
Last updated: 09/18/2026, 22:01:35 UTC
Views: 35
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