ByteStash 1.5.10 before 1.6.2 contains an insufficient session expiration vulnerability that allows holders of API
Source GCVE Database
Not known to be exploited · CVSS 5.3 Medium : upgrade to 1.6.2 when convenient.
Data as of 11 Nov 2026, 16:35 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 5.3 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 5.4 |
- Patch
- Available – fixed in 1.6.2
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Upgrade ByteStash to 1.6.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| jordan-dalbyByteStash | Affected
| Fixed in
|
GitHubByteStashpkg:github/ByteStashOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fixed version is available starting with ByteStash 1.6.2. Users should upgrade to version 1.6.2 or later to remediate this vulnerability. No other mitigation or temporary workaround is indicated.
Description
ByteStash versions from 1.5.10 up to but not including 1.6.2 have a vulnerability where API keys remain valid even after the associated account is deactivated. This occurs because the validateApiKey function does not verify the account status. As a result, attackers with a deactivated account's API key can access and manipulate snippets and use all MCP tools.
References
- github.com/jordan-dalby/ByteStash/security/advisories/GHSA-26m9-ww2j-3cr5 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-126658 (opens in a new tab)
- github.com/jordan-dalby/ByteStash/commit/eb4ecdfc30f2e7d1424137fa7fe3a9eed663218b (opens in a new tab)
- github.com/jordan-dalby/ByteStash/blob/v1.6.1/server/src/repositories/apiKeyRepository.js (opens in a new tab)
- github.com/jordan-dalby/ByteStash/releases/tag/v1.6.2 (opens in a new tab)
- vulncheck.com/advisories/bytestash-1.5.10-before-1.6.2-insufficient-session-expiration-via-api-keys (opens in a new tab)