CVE-2026-106623: 
Adobe ColdFusion vulnerability analysis and mitigation

CVE-2026-106623 is an Incorrect Authorization vulnerability in Adobe ColdFusion that allows unauthenticated remote attackers to disclose sensitive memory contents. It affects ColdFusion 2025 (through update 13, i.e., versions up to 2025.0.13) and ColdFusion 2023 (through update 25, i.e., versions up to 2023.0.25). The vulnerability was published on October 13, 2026, with patches made available the same day. It carries a CVSS v3.1 base score of 7.5 (High) (GitHub Advisory, Adobe Advisory).

The vulnerability is classified as CWE-863 (Incorrect Authorization), meaning ColdFusion fails to correctly perform authorization checks when an actor attempts to access certain resources or memory regions. An unauthenticated attacker can exploit this over the network with low attack complexity, requiring no privileges and no user interaction. The flaw leads to disclosure of sensitive server memory contents, suggesting that improperly guarded memory access paths can be reached via crafted network requests. No public technical write-up or proof-of-concept code has been identified at this time (GitHub Advisory, Adobe Advisory).

Successful exploitation allows an unauthenticated remote attacker to read sensitive information from ColdFusion server memory, which may include credentials, session tokens, configuration data, or other in-memory secrets. The impact is limited to confidentiality — there is no integrity or availability impact. Exposed memory contents could facilitate further attacks, such as credential reuse or session hijacking, potentially enabling lateral movement within the environment (GitHub Advisory, Adobe Advisory).

As of the time of disclosure, there is no public proof-of-concept exploit and no evidence of active in-the-wild exploitation (Adobe Advisory). The EPSS score is approximately 0.486% (40th percentile), indicating a relatively low near-term exploitation probability. No threat actor attribution has been reported, and the vulnerability does not appear in the CISA Known Exploited Vulnerabilities (KEV) catalog. The vulnerability is detectable by Qualys scanner (detection ID 388985) (GitHub Advisory).

Adobe has released patches addressing this vulnerability. Users should upgrade to ColdFusion 2025 Update 14 (2025.0.14) or later, and ColdFusion 2023 Update 26 (2023.0.26) or later. As a network-level workaround, administrators should restrict direct access to ColdFusion servers from untrusted networks using firewalls or reverse proxies. Monitoring for unusual or anomalous network access patterns targeting ColdFusion endpoints is also recommended while patching is underway (Adobe Advisory, GitHub Advisory).