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CVE-2026-126658VulnerabilityPublished

ByteStash 1.5.10 before 1.6.2 contains an insufficient session expiration vulnerability that allows holders of API

Source GCVE Database

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Authoritative record:CVE-2026-126658· Medium 5.3

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

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.05.3
CNA (VulnCheck)CVSS 3.15.4
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:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
jordan-dalbyByteStashAffected
  • >=1.5.10 <1.6.2
Fixed in
  • 1.6.2
GitHubByteStashpkg:github/ByteStashOther threatsAffected
  • >=1.5.10 <1.6.2
Fixed in
  • 1.6.2

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

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