AstrBotDevs AstrBot Scheduled Task cron_tools.py FutureTaskTool.call improper authorization

published 2026-07-12 3 mo ago modified 2026-10-24 15 d ago also EUVD-2026-43221

cvss: 6.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 28%
public exploits: 0; none known

A security flaw has been discovered in AstrBotDevs AstrBot up to 4.25.2. Affected is the function FutureTaskTool.call of the file astrbot/core/tools/cron_tools.py of the component Scheduled Task Handler. Performing a manipulation of the argument payload["note"] results in improper authorization. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 3 mo ago (2026-07-13)

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

gist.github.com https://gist.github.com/YLChen-007/2bab96d5bedef784f90c97009fff8a19 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA	3.1	6.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	3.0	6.3	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
CNA	4.0	2.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA	3.1	6.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

AstrBotDevs AstrBot

Classification

Weakness

CWE-285 Improper Authorization
CWE-266 Incorrect Privilege Assignment

References

gist.github.com /YLChen-007/2bab96d5bedef784f90c97009fff8a19
exploit
vuldb.com /vuln/377806
vdb-entry, technical-description
vuldb.com /vuln/377806/cti
signature, permissions-required
vuldb.com /cve/CVE-2026-15499
third-party-advisory
vuldb.com /submit/844656
third-party-advisory

Sources

CVE List CVE-2026-15499
NVD CVE-2026-15499

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary