MEDIUM
CVE-2023-26818
CWE-863Published: May 19, 2023· Updated: Jul 9, 2026
5.5
CVSS v3.1
Official Description
Telegram 9.3.1 and 9.4.0 allows attackers to access restricted files, microphone ,or video recording via the DYLD_INSERT_LIBRARIES flag.
Technical Analysis
CVE-2023-26818 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 5.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Vendors & Products
telegram1 product(s)
telegram
Source: NVD CPE · 2 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
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Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories
All References (2)
→
https://danrevah.github.io/2023/05/15/CVE-2023-26818-Bypass-TCC-with-Telegram/Exploit · Technical Description · Third Party Advisory
→
https://danrevah.github.io/2023/05/15/CVE-2023-26818-Bypass-TCC-with-Telegram/Exploit · Technical Description · Third Party Advisory
Quick Facts
CVE IDCVE-2023-26818
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-863
CISA KEVNo
Affected1 vendor(s)
PublishedMay 19, 2023
Related CVEs (CWE-863)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-26818 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.