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CVE-2026-2705VulnerabilityPublished Updated

CVE-2026-2705: Open Babel · Out-of-bounds Read

Affects Open BabelSource CVE Database V5

0

Not known to be exploited · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.8% chance of exploitation in 30 days – higher than 57% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Open BabelAffected
  • =3.1.0
  • =3.1.1
Fixed in–

AI-suggested

A patch commit has been identified for this vulnerability, but the vendor has not yet officially released a fix. Users of Open Babel versions 3.1.0 and 3.1.1 should apply the patch identified by commit e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a as soon as possible to remediate the issue. Until an official release is available, manual patching or code review is recommended. Monitor the vendor's channels for an official update.

Description

CVE-2026-2705 is a medium severity vulnerability in Open Babel versions 3.1.0 and 3.1.1. It involves an out-of-bounds read in the function OBAtom::SetFormalCharge within the MOL2 File Handler component. The vulnerability can be triggered remotely and an exploit is publicly available. A patch has been identified but not yet applied or officially released by the project.

References

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