CVE-2026-6879
Quadratic Behavior in xml.etree.ElementPath Index Predicates
02 Description
Quadratic Behavior in xml.etree.ElementPath Index Predicates
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.35% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 28.9% of scored records. A rank, not a probability.
- NVD base score
- 2.0 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-10-24.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-07-28 13:46Z3 MO AGO
- Last updated
- 2026-08-13 00:27Z2 MO AGO
- Reserved
- 2026-04-22
- Assigning CNA
- PSF
- Record state
- PUBLISHED
- Severity
- Low (CVSS 2.0)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
- Weaknesses
- Data version
- 5.2
- Document digest
- 6bfd672753df9b101c19eac12b7db6b44b29380dd82a440f4564daafc4c418b9
05 Affected products
06 References
- github.comhttps://github.com/python/cpython/pull/152676
- github.comhttps://github.com/python/cpython/issues/152674
- mail.python.orghttps://mail.python.org/archives/list/security-announce@python.org/thread/7YMZ6DDZVR26TJJBVO3RDNBAVGHNYAKR/
- github.comhttps://github.com/python/cpython/commit/2ffab083782968a4d732738f4f1dff6bbd69d2b0
- github.comhttps://github.com/python/cpython/commit/02c08e6b747ac43d0d866a4ffa916bedf3423f81
- github.comhttps://github.com/python/cpython/commit/390337b8ba1658833fdef379e1739c9f9533a8db
- github.comhttps://github.com/python/cpython/commit/cb409342a19f25656f62e679f8bac265fe1442c3
- github.comhttps://github.com/python/cpython/commit/96510a3758f4a075f43223afdee3b6ee1a7a7f02
- github.comhttps://github.com/python/cpython/commit/037965c00a427cba5c05447efadc67c51a492e85
- github.comhttps://github.com/python/cpython/commit/0583f24ae678993e3f7939f51ad5bcae5ad9dc70
07 Fixed in
Debian 12
- pypy3 No fix yet
- python3.11 No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- pypy3 No fix yet
- python3.13 Fixed in 3.13.5-2+deb13u5
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- pypy3 Fixed in 8.0.0+dfsg-1
- python3.13 Fixed in 3.13.15-1
- python3.14 Fixed in 3.14.7-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- pypy3 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- pypy3 No fix yet
- python3.10 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- pypy3 No fix yet
- python3.12 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- pypy3 No fix yet
- python3.14 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.10
- pypy3 No fix yet
- python3.14 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- python2.7 No fix yet
- python3.4 No fix yet
- python3.5 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- python2.7 No fix yet
- python3.5 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- python2.7 No fix yet
- python3.6 No fix yet
- python3.7 No fix yet
- python3.8 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- python2.7 No fix yet
- python3.8 No fix yet
- python3.9 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 22.04 LTS
- python2.7 No fix yet
- python3.11 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.